09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
11 - Environmental control apparatus
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computers, computer processing equipment, data processing
apparatus and instruments; light emitting diodes; electron
devices; luminescent probes for scientific analysis; optical
apparatus and instruments; semi-conductors; quantum dots
being crystalline particles of a semi-conductor;
telecommunications apparatus and instruments; electrical
displays; electronic displays; displays for electrical
equipment; displays for electronic equipment; displays for
televisions; display screens for entertainment devices;
displays for computing devices and computers; displays for
telecommunication equipment; displays for telephones
including mobile phones; displays for personal digital
assistants; automotive displays; televisions; cameras and
displays for cameras; augmented and virtual reality headsets
and displays for augmented virtual reality headsets;
sensors; imaging sensors; range finding sensors; night
vision sensors; automotive sensors; smartwatches and
displays for smartwatches; sensors for use in machine
vision; sensors for use in surveillance and security; parts
and fittings for the aforesaid goods. Surgical and medical apparatus and instruments; probes for
medical purposes, namely luminescent probes for chemical and
biological screening applications; electronic displays being
part of medical apparatus and instruments; phototherapy
apparatus and instruments; displays for use in electronic
medical apparatus and instruments; parts and fittings for
the aforesaid goods. Lighting apparatus and installations; horticulture lighting
apparatus and installations; parts and fittings for the
aforesaid goods. Research and development and design services; research and
development services and design services relating to
nanomaterials; research and development and design services
relating to quantum dots; research and development and
design services relating to technological applications in
the field of displays for electronic devices, sensors,
lighting apparatus and installations, medical apparatus and
instruments, quantum telecommunications, and distributed
quantum computing.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
Computers, computer processing equipment, data processing
apparatus and instruments; light emitting diodes; electron
devices; luminescent probes for scientific analysis; optical
apparatus and instruments; semi-conductors; quantum dots
being crystalline particles of a semi-conductor;
telecommunications apparatus and instruments; electrical
displays; electronic displays; displays for electrical
equipment; displays for electronic equipment; displays for
televisions; display screens for entertainment devices;
displays for computing devices and computers; displays for
telecommunication equipment; displays for telephones
including mobile phones; displays for personal digital
assistants; automotive displays; televisions; cameras and
displays for cameras; augmented and virtual reality headsets
and displays for augmented virtual reality headsets;
sensors; imaging sensors; range finding sensors; night
vision sensors; automotive sensors; smartwatches and
displays for smartwatches; sensors for use in machine
vision; sensors for use in surveillance and security; parts
and fittings for the aforesaid goods. Surgical and medical apparatus and instruments; probes for
medical purposes, namely luminescent probes for chemical and
biological screening applications; electronic displays being
part of medical apparatus and instruments; phototherapy
apparatus and instruments; displays for use in electronic
medical apparatus and instruments; parts and fittings for
the aforesaid goods.
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Computers, computer processing equipment, data processing
apparatus and instruments; light emitting diodes; electron
devices; luminescent probes for scientific analysis; optical
apparatus and instruments; semi-conductors; quantum dots
being crystalline particles of a semi-conductor;
telecommunications apparatus and instruments; electrical
displays; electronic displays; displays for electrical
equipment; displays for electronic equipment; displays for
televisions; displays for entertainment devices; displays
for computing devices and computers; displays for
telecommunication equipment; displays for telephones
including mobile phones; displays for personal digital
assistants; automotive displays; displays for use in
electronic medical apparatus and instruments; televisions;
cameras and displays for cameras; augmented and virtual
reality headsets and displays for augmented virtual reality
headsets; sensors; imaging sensors; range finding sensors;
night vision sensors; automotive sensors; smartwatches and
displays for smartwatches; sensors for use in machine
vision; sensors for use in surveillance and security; parts
and fittings for the aforesaid goods. Lighting apparatus and installations; horticulture lighting
apparatus and installations; parts and fittings for the
aforesaid goods.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
Computers, computer processing units, data processing apparatus and instruments; light emitting diodes; luminescent probes for scientific analysis; optical apparatus and instruments, namely apparatus and instruments to measure the properties of light, photodetectors, optoelectronic devices that find, detect, and control light and radiative recombination, LEDs, photoelectric devices, photovoltaic devices, stimulated emission devices, and photo emissive devices ; semi-conductors; quantum dots being crystalline particles of a semi-conductor; telecommunications apparatus and instruments, namely, apparatus and instruments for transmitting data via quantum transmission; electrical displays, namely electric luminescent display panels; electronic displays, namely computer display screens; electronic display screens for electrical equipment; display screens for electronic equipment; display monitors for electronic equipment; display screens for televisions; display monitors for entertainment devices; display monitors for computing devices and computers; display screens and monitors for telecommunication equipment; display screens for telephones including mobile phones; display screens for personal digital assistants; automotive display monitors; televisions; cameras and display screens for cameras; headsets and display screens for augmented virtual reality headsets; electric and electronic sensors; imaging sensors; range finding sensors; night vision sensors; automotive parking sensors; automotive sensors for LiDAR; automotive sensors to support navigation in adverse weather conditions; sensors for plastic sorting; sensors to detect thermal radiation; sensors for eye tracking and facial recognition; smartwatches and display screens for smartwatches; sensors for use in machine vision; sensors for use in surveillance and security; parts and fittings especially adapted for the aforesaid goods Probes for medical purposes, namely luminescent probes for chemical and biological screening applications; electronic display screens being part of medical imaging, x-ray, ultrasound and image-guided surgery apparatus and instruments; phototherapy apparatus and instruments; photodynamic therapy apparatus and equipment; display screens for use in electronic medical apparatus and instruments being part of imaging, x-ray, ultrasound and image guided surgery apparatus and instruments; apparatus and equipment for deep tissue imaging; parts and fittings for the aforesaid goods
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
11 - Environmental control apparatus
42 - Scientific, technological and industrial services, research and design
Goods & Services
Computers, computer processing units, data processing apparatus and instruments; light emitting diodes; luminescent probes for scientific analysis; optical apparatus and instruments, namely apparatus and instruments to measure the properties of light, photodetectors, optoelectronic devices that find, detect, and control light and radiative recombination, LEDs, photoelectric devices, photovoltaic devices, stimulated emission devices, and photo emissive devices; semi-conductors; quantum dots being crystalline particles of a semi-conductor; telecommunications apparatus and instruments, namely, apparatus and instruments for transmitting data via quantum transmission; electrical displays, namely electric luminescent display panels; electronic displays, namely computer display screens; electronic display screens for electrical equipment; display screens for electronic equipment; display monitors for electronic equipment; display screens for televisions; display monitors for entertainment devices; display monitors for computing devices and computers; display screens and monitors for telecommunication equipment; display screens for telephones including mobile phones; display screens for personal digital assistants; automotive display monitors; televisions; cameras and display screens for cameras; headsets and display screens for augmented virtual reality headsets; electric and electronic sensors; imaging sensors; range finding sensors; night vision sensors; automotive parking sensors; automotive sensors for LiDAR; automotive sensors to support navigation in adverse weather conditions; sensors for plastic sorting; sensors to detect thermal radiation; sensors for eye tracking and facial recognition; smartwatches and display screens for smartwatches; sensors for use in machine vision; sensors for use in surveillance and security; parts and fittings especially adapted for the aforesaid goods Probes for medical purposes namely luminescent probes for chemical and biological screening applications; electronic display screens being part of medical imaging, x-ray, ultrasound and image-guided surgery apparatus and instruments; phototherapy apparatus and instruments; photodynamic therapy apparatus and equipment; display screens for use in electronic medical apparatus and instruments being part of imaging, x-ray, ultrasound and image guided surgery apparatus and instruments; apparatus and equipment for deep tissue imaging; parts and fittings especially adapted for the aforesaid goods Lighting apparatus and installations, namely lighting apparatus and installations for phototherapy, animal husbandry, algal growth, photodynamic therapy, and general use; horticulture lighting apparatus and installations; parts and fittings especially adapted for the aforesaid goods Research and development services and design services relating to nanomaterials; research and development and design services relating to quantum dots; research and development and design services relating to technological applications in the field of displays for electronic devices, sensors, lighting apparatus and installations, medical apparatus and instruments, quantum telecommunications, and distributed quantum computing
09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
Goods & Services
Computers, computer processing units, data processing apparatus and instruments; light emitting diodes; luminescent probes for scientific analysis; optical apparatus and instruments, namely apparatus and instruments to measure the properties of light, photodetectors, optoelectronic devices that find, detect, and control light and radiative recombination, LEDs, photoelectric devices, photovoltaic devices, stimulated emission devices, and photo emissive devices; semi-conductors; quantum dots being crystalline particles of a semi-conductor; telecommunications apparatus and instruments, namely, apparatus and instruments for transmitting data via quantum transmission; electrical displays, namely electric luminescent display panels; electronic displays, namely computer display screens; electronic display screens for electrical equipment; display screens for electronic equipment; display monitors for electronic equipment; display screens for televisions; display monitors for entertainment devices; display monitors for computing devices and computers; display screens and monitors for telecommunication equipment; display screens for telephones including mobile phones; display screens for personal digital assistants; automotive display monitors; televisions; cameras and display screens for cameras; headsets and display screens for augmented virtual reality headsets; electric and electronic sensors; imaging sensors; range finding sensors; night vision sensors; automotive parking sensors; automotive sensors for LiDAR; automotive sensors to support navigation in adverse weather conditions; sensors for plastic sorting; sensors to detect thermal radiation; sensors for eye tracking and facial recognition; smartwatches and display screens for smartwatches; sensors for use in machine vision; sensors for use in surveillance and security; parts and fittings especially adapted for the aforesaid goods Lighting apparatus and installations, namely lighting apparatus and installations for phototherapy, animal husbandry, algal growth, photodynamic therapy, and general use; horticulture lighting apparatus and installations; parts and fittings especially adapted for the aforesaid goods
7.
Method for the Detection of Surface-Mounted Biological Materials and Pathogens
Methods and compositions for the detection of surface-mounted pathogens are described herein. Compositions include preparations comprising quantum dot-ligand conjugates, wherein the ligands target a specific pathogen to form a quantum dot-pathogen complex. Methods include the use of the preparations comprising the quantum dot-ligand conjugates. The preparations may be applied to a surface for the detection of a surface-mounted pathogen thereon via fluorescence, which may be detected by the naked eye or a simple fluorescence camera.
Methods and compositions for the detection of surface-mounted pathogens are described herein. Compositions include preparations comprising quantum dot- ligand conjugates, wherein the ligands target a specific pathogen to form a quantum dot-pathogen complex. Methods include the use of the preparations comprising the quantum dot-ligand conjugates. The preparations may be applied to a surface for the detection of a surface-mounted pathogen thereon via fluorescence, which may be detected by the naked eye or a simple fluorescence camera.
Methods of synthesizing transition metal dichalcogenide nanoparticles include forming a metal-amine complex, combining the metal-amine complex with a chalcogen source in at least one solvent to form a solution, heating the solution to a first temperature for a first period of time, and heating the solution to a second temperature that is higher than the first temperature for a second period of time.
Compositions and methods are provided for enhancing the performance of enhancement of indocyanine green (ICG)-based imaging, angiographyand detection efficiency as well as ICG- PDT in which quantum dot nanoparticles (QDs) are conjugated to ICGor an ICG derivative.
A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
A nanoparticle conjugate includes a quantum dot (QD) and a thermally activated delayed fluorescence (TADF) molecule bound to the QD. In some instances, the TADF molecule can be directly bound to a surface of the QD. In other instances, the TADF molecule can be indirectly bound to the QD via an interaction with one or more capping ligands disposed on a surface of the QD. Nanoparticle conjugates described herein can be incorporated into emissive layers of electroluminescent light-emitting diode devices to yield electroluminescent quantum dot-containing light-emitting diode (QD-LED) devices.
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 51/56 - Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
A horticultural lighting apparatus includes a housing; a blue-light emitting element; an emissive layer in optical communication with the blue-light emitting element, the emissive layer includes a polymer material and a population of quantum dots dispersed within the polymer material capable of absorbing blue light and emitting light having wavelengths in the red and far-red regions of the electromagnetic spectrum; a brightness enhancing film in optical communication with the blue-light emitting element and emissive layer; and a protective cover layer. The protective cover layer and housing isolates the blue-light emitting element, emissive layer and brightness enhancing film from the external environment. Methods of growing plants include illuminating a plant with a horticultural lighting apparatus according the present disclosure.
Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
C09K 11/62 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing gallium, indium or thallium
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
B01J 13/02 - Making microcapsules or microballoons
An emissive layer of an electroluminescent device, such as an electroluminescent display device, includes a host matrix and a two-dopant system dispersed in the host matrix. The two-dopant system has a fluorescent emitter dopant and an emissive donor-assistant dopant. The emissive donor-assistant dopant can be a fluorescence donor-assistant dopant or a phosphorescence donor- assistant dopant. The physical distance between the fluorescent emitter dopant and the emissive donor-assistant dopant can be controlled by using various capping ligands, which are bound to a surface of the fluorescent emitter dopant.
Emissive layers for electroluminescent display devices are described herein. The emissive layer can include a two-dopant system having a population of quantum dots (QDs) and a population of molecules exhibiting thermally activated delayed fluorescence (TADF). In some instances, one or both of the QDs and TADF molecules can be disposed in a host matrix. In some instances, the QDs and TADF molecules can be disposed in separate host matrices. In some instances, an electroluminescent display device can include an emissive layer comprising a population of quantum dots (QDs) and a layer adjacent to the emissive layer, the adjacent layer comprising a population of molecules exhibiting thermally activated delayed fluorescence (TADF).
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
An emissive layer of a top-emitting (TE) printed display comprises a combination of solution-processable nanocrystal quantum dots, thermally activated delayed fluorescent molecules, and a suitable host material along with both electron and hole charge transport materials sandwiched into a microcavity between a reflective bottom electrode and a transparent or semi- transparent top electrode. The electrodes may be reflective metals and the thickness of the emissive layers and charge transport layers may be tuned according to the required resonant wavelength along with the thickness of the top semi-transparent electrode to optimize the resonant condition and maximize the light output.
H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
A light emitting layer including a plurality of light emitting particles embedded within a host matrix material. Each of said light emitting particles includes a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. A method of fabricating a light emitting layer comprising a plurality of light emitting particles embedded within a host matrix material, each of said light emitting particles comprising a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. The method comprises providing a dispersion containing said light emitting particles, depositing said dispersion to form a film, and processing said film to produce said light emitting layer.
C09K 11/88 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
g) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
20.
METHODS FOR ENHANCING 5-AMINOLEVULINIC ACID-BASED MEDICAL IMAGING AND PHOTOTHERAPY
The present disclosure relates to quantum dot nanoparticles conjugated to 5- Aminolevulinic acid or esters thereof and their uses in conjunction with additional free, non- endogenous 5-Aminolevulinic acid or esters thereof.
4 nanoparticles, wherein X is Zn, Cd, Hg, Ni, Co, Mn or Fe and Y is S or Se, (CXTY) are disclosed herein. The nanoparticles can be used to make layers for use in thin film photovoltaic (PV) cells. The CXTY materials are prepared by a colloidal synthesis in the presence of labile organo-chalcogens. The organo-chalcogens serves as both a chalcogen source for the nanoparticles and as a capping ligand for the nanoparticles.
H01L 31/054 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
H01L 31/055 - Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
H01L 31/0328 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
H01B 1/10 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances sulfides
B82Y 40/00 - Manufacture or treatment of nanostructures
23.
QUANTUM DOT ARCHITECTURES FOR COLOR FILTER APPLICATIONS
Organically capped quantum dots are made by functionalizing the surfaces of QDs of various architectures with a combination of 6-mercaptohexanol (MCH) and 2-[2-(2-methoxyethoxy)-ethoxy]-acetic acid (MEEAA). Such MCH/MEEAA- capped QDs exhibit improved compatibility with solvents used in the fabrication of QD-containing films of light emitting devices, such as liquid crystal displays.
C09K 11/88 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
G02F 1/13 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals
24.
CIGS NANOPARTICLE INK FORMULATION WITH A HIGH CRACK-FREE LIMIT
A method for formulating a CIGS nanoparticle-based ink, which can be processed to form a thin film with a crack-free limit (CFL) of 500 nm or greater, comprises combining CIGS nanoparticles and binary chalcogenide nanoparticles in a solvent.
A molded nanoparticle phosphor for light emitting applications is fabricated by converting a suspension of nanoparticles in a matrix material precursor into a molded nanoparticle phosphor. The matrix material can be any material in which the nanoparticles are dispersible and which is moldable. The molded nanoparticle phosphor can be formed from the matrix material precursor/nanoparticle suspension using any molding technique, such as polymerization molding, contact molding, extrusion molding, injection molding, for example. Once molded, the molded nanoparticle phosphor can be coated with a gas barrier material, for example, a polymer, metal oxide, metal nitride or a glass. The barrier-coated molded nanoparticle phosphor can be utilized in a light-emitting device, such as an LED. For example, the phosphor can be incorporated into the packaging of a standard solid state LED and used to down-convert a portion of the emission of the solid state LED emitter.
C09D 165/00 - Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCoating compositions based on derivatives of such polymers
B82Y 40/00 - Manufacture or treatment of nanostructures
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
Compositions and their use are described for delivery of drugs to desired tissues via a light responsive quantum dot (QD) drug delivery system (QD-DDS). The QD-DDS comprises water soluble QD nanoparticles loaded with drug molecules that are releasable from the QD-DDS upon light administration at a wavelength absorbed by the QD.
A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
A61K 31/00 - Medicinal preparations containing organic active ingredients
A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines
B82Y 5/00 - Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
Compositions and methods are described for detecting and treating conditions including cancer with target specific quantum dot nano-devices. In some aspects, nanoparticle conjugates are provided having multiple target specificities and include surface modified, water soluble quantum dot (QD) nanoparticles each of which are chemically conjugated to at least two different target specific ligands.
The present disclosure relates to quantum dot nanoparticles conjugated to ligands, and in particular quantum dot nanoparticles wherein each nanoparticle is conjugated to a polymenzable ligand. The present disclosure also relates to methods of making such conjugated quantum dot nanoparticles, and the use of such conjugated quantum dot nanoparticles as therapeutic agents, ablation agents and tattooing agents.
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
29.
SHELLING OF HALIDE PEROVSKITE NANOPARTICLES FOR THE PREVENTION OF ANION EXCHANGE
A core/shell semiconductor nanoparticle structure comprises a core comprising a halide perovskite semiconductor and a shell comprising a semiconductor material that is not a halide perovskite (and that is substantially free of halide perovskites). The halide perovskite semiconductor core may be of the form AMX3, wherein: A is an organic ammonium such as CH3NH3+, (C8H17)2(CH3NH3)+, PhC2H4NH3+, C6H11CH2NH3+ or 1-adamantyl methyl ammonium, an amidinium such as CH(NH2)2+, or an alkali metal cation such as Li+, Na+, K+, Rb+ or Cs+; M is a divalent metal cation such as Mg2+, Mn2+, Ni2+, Co2+, Pb2+, Sn2+, Zn2+, Ge2+, Eu2+, Cu2+ or Cd2+; and X is a halide anion (F-, Cl-, Br-, I-) or a combination of halide anions.
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
30.
Shelling of halide perovskite nanoparticles for the prevention of anion exchange
C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 33/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
H01L 33/18 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a particular crystal structure or orientation, e.g. polycrystalline, amorphous or porous within the light emitting region
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
C01D 3/00 - Halides of sodium, potassium, or alkali metals in general
C07C 211/63 - Quaternary ammonium compounds having quaternised nitrogen atoms bound to acyclic carbon atoms
C07F 3/00 - Compounds containing elements of Groups 2 or 12 of the Periodic Table
The present disclosure relates to a plurality of quantum dot nanoparticles conjugated to ligands, and in particular a plurality of quantum dot nanoparticles wherein each nanoparticle is conjugated to an exosome-specific binding ligand. The present disclosure also relates to methods of making such a plurality of conjugated quantum dot nanoparticles, methods of detecting exosomes using such a plurality of conjugated quantum dot nanoparticles and methods of detecting exosomes using such a plurality of conjugated quantum dot nanoparticles.
A thin silazane coating cured with short-wavelength UV radiation is highly transparent, exhibits good oxygen-barrier properties, and does minimal damage to quantum dots in a quantum dot-containing film.
C09D 183/16 - Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon onlyCoating compositions based on derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
C08L 83/16 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon onlyCompositions of derivatives of such polymers in which all the silicon atoms are connected by linkages other than oxygen atoms
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
C09K 11/62 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing gallium, indium or thallium
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
B01J 13/02 - Making microcapsules or microballoons
The present disclosure relates to conjugated quantum dot nanoparticles, to methods of making such conjugated quantum dot nanoparticles, and to methods of detecting DNA methylation using such conjugated quantum dot nanoparticles. In one embodiment, the quantum dot is conjugated to an antibody that recognizes methylated DNA bases, such as an anti-5-methylcytosine antibody, an anti-5- hydroxymethylcytosine antibody, an anti-5-formylcytosine antibody, an anti-5-carboxylcytosine antibody or an anti-N6-methyladenine antibody.
The present disclosure relates to quantum dot nanoparticles useful for targeting and manipulating mitochondrial function, and to methods of targeting and manipulating mitochondrial function using such quantum dot nanoparticles.
A61K 41/00 - Medicinal preparations obtained by treating materials with wave energy or particle radiation
A61K 47/69 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the conjugate being characterised by physical or galenical forms, e.g. emulsion, particle, inclusion complex, stent or kit
A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
An organic light-emitting diode with an inorganic two-dimensional (2D) EL active material may comprise a plurality of layers on a plastic or glass substrate. In addition to the EL layer, the device may comprise a hole injection layer, a hole transport layer/electron blocking layer, an electron transport layer/hole blocking layer, an electron injection layer, and optional buffer layers such as poly(methyl methacrylate) (PMMA) to help balance the charge injection into the 2D material and redistribute the electric field.
A method of synthesis of two-dimensional (2D) nanoflakes comprises the cutting of prefabricated nanoparticles. The method allows high control over the shape, size and composition of the 2D nanoflakes, and can be used to produce material with uniform properties in large quantities. Van der Waals heterostructure devices are prepared by fabricating nanoparticles, chemically cutting the nanoparticles to form nanoflakes, dispersing the nanoflakes in a solvent to form an ink, and depositing the ink to form a thin film.
B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided forMaking microcapsules or microballoons
38.
CHEMICAL VAPOR DEPOSITION METHOD FOR FABRICATING TWO-DIMENSIONAL MATERIALS
A method of synthesis of two-dimensional metal chalcogenide monolayers, such as WSe2 and MoSe2, is based on a chemical vapor deposition approach that uses H2Se or alkyl or aryl selenide precursors to form a reactive gas. The gaseous selenium precursor may be introduced into a tube furnace containing a metal precursor at a selected temperature, wherein the selenium and metal precursors react to form metal chalcogenide monolayers.
Multi-phase polymer films of quantum dots (QDs) and their use in light emitting devices (LEDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
F21K 9/64 - Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21V 9/16 - Selection of luminescent materials for light screens
g) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
41.
HIGHLY STABLE QUANTUM DOT-CONTAINING POLYMER FILMS
Highly stable films containing semiconductor nanoparticles ("quantum dots") are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
H01J 61/42 - Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
H05B 33/20 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the material in which the electroluminescent material is embedded
42.
QUANTUM DOT-BASED LIGHTING DEVICES FOR ANIMAL HUSBANDRY AND AQUARIUMS
A lighting fixture for promoting the development of animals comprises a backlight, such as an LED or an array of LEDs, and a series of one or more retractable, rotatable or interchangeable lenses comprising quantum dots, such that the color and/or color temperature of the light emitted by the lighting fixture can be altered and optimized during animal development. A lighting fixture adapted for use on an aquarium may be in the form factor of a standard fluorescent tube and comprise one or more LEDs and a quantum dot-containing film for down-converting at least a portion of the light emitted by the LEDs so as to provide optimum wavelengths for photosynthesis by aquarium plants while simultaneously providing attractive display lighting for the aquarium fish.
A light emitting layer including a plurality of light emitting particles embedded within a host matrix material. Each of said light emitting particles includes a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. A method of fabricating a light emitting layer comprising a plurality of light emitting particles embedded within a host matrix material, each of said light emitting particles comprising a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. The method comprises providing a dispersion containing said light emitting particles, depositing said dispersion to form a film, and processing said film to produce said light emitting layer.
C09K 11/88 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
LED devices emitting white light comprise a blue-emitting LED, green-emitting quantum dots (QDs) and red-emitting K2SiF6:Mn4+ (KSF) phosphor. A backlight unit (BLU) for a liquid crystal display (LCD) comprises one or more blue-emitting LEDs and a polymer film containing green-emitting QDs and KSF phosphor. The QDs and/or KSF phosphor may be encapsulated in beads that provide protection from oxygen and/or moisture.
C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
H05B 33/14 - Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material
C09K 11/61 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing fluorine, chlorine, bromine, iodine or unspecified halogen elements
A 5-aminolevulinic acid conjugated quantum dot nanoparticle is useful for treating cancer by administering the 5-aminolevulinic acid conjugated quantum dot nanoparticle in photodynamic therapy as a precursor of both a fluorescence label and a photosensitizer.
A scalable method for the manufacture of narrow, bright, monodisperse, photo-luminescent quantum dots prepared in the presence of a Group II-VI molecular seeding cluster fabricated in situ from a zinc salt and a thiol or selenol compound. Exemplary quantum dots have a core containing indium, phosphorus, zinc and either sulfur or selenium.
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
B01J 2/00 - Processes or devices for granulating materials, in generalRendering particulate materials free flowing in general, e.g. making them hydrophobic
48.
Semiconductor nanoparticle-based light-emitting devices and associated materials and methods
Embodiments of the present invention relate to a formulation for use in the fabrication of a light-emitting device, the formulation including a population of semiconductor nanoparticles incorporated into a plurality of discrete microbeads comprising an optically transparent medium, the nanoparticle-containing medium being embedded in a host light-emitting diode encapsulation medium. A method of preparing such a formulation is described. There is further provided a light-emitting device including a primary light source in optical communication with such a formulation and a method of fabricating the same.
C09K 11/88 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
G01N 33/58 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving labelled substances
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
H01L 33/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
09 - Scientific and electric apparatus and instruments
Goods & Services
Optical films containing semiconductor nanoparticles for changing the color of the light output of a light source for use in backlighting units of electronic displays and lighting apparatus
An LED device has a cap containing one or more quantum dot (QD) phosphors. The cap may be sized and configured to be integrated with standard LED packages. The QD phosphor may be held within the well of the LED package, so as to absorb the maximum amount of light emitted by the LED, but arranged in spaced-apart relation from the LED chip to avoid excessive heat that can lead to degradation of the QD phosphor(s). The packages may be manufactured and stored for subsequent assembly onto an LED device.
A composition of matter comprises a plurality of quantum dots and a metal thiol polymer that acts to stabilize the quantum dots. In certain embodiments, the metal thiol polymer is a zinc thiol polymer. The zinc thiol polymer may be a zinc alkanethiolate. The zinc alkanethiolate may be zinc dodecanethiolate (Zn-DDT). A composition comprising a plurality of quantum dots and a metal thiol polymer may be formulated with one or more additional polymers as a quantum dot-containing bead or as a quantum dot-containing composite material - e.g., a multilayer film.
y Semiconductor core (where M is In or Ga) and an organic capping ligand attached to the core via a carbon-selenium bond. The selenol provides a source of selenium for incorporation into the semiconductor core and also provides the organic capping ligand. The nanoparticles are particularly suitable for solution-based methods of preparing semiconductor films.
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
4 nanoparticles, wherein X is Zn, Cd, Hg, Ni, Co, Mn or Fe and Y is S or Se, (CXTY) are disclosed herein. The nanoparticles can be used to make layers for use in thin film photovoltaic (PV) cells. The CXTY materials are prepared by a colloidal synthesis in the presence of labile organo-chalcogens. The organo-chalcogens serves as both a chalcogen source for the nanoparticles and as a capping ligand for the nanoparticles.
H01L 31/0328 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups
H01B 1/10 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances sulfides
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y 40/00 - Manufacture or treatment of nanostructures
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
55.
Methods for preparing Cu2ZnSnS4 nanoparticles for use in thin film photovoltaic cells
4 (CZTS) layers for use in thin film photovoltaic (PV) cells are disclosed herein. The CZTS materials are nanoparticles prepared by a colloidal synthesis in the presence of a labile organothiol. The organothiol serves as both a sulphur source and as a capping ligand for the nanoparticles.
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
Multi-phase polymer films of quantum dots (QDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
Multi-phase polymer films of quantum dots (QDs) are disclosed. The QDs are absorbed in a host matrix, which is dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
It has been discovered that certain silicon-containing, surface-modifying ligands can be used to make semiconductor nanopartides (quantum dots) more compatible with polysiloxanes. Quantum dots dispersed in a polysiloxane matrix may be used, for example, in light-emitting devices to alter the emission spectrum of such devices.
The addition of a chain transfer agent (CTA) or a reversible-addition fragmentation chain transfer agent (RAFT CTA) such as (2-(dodecyl-thiocarbonothioylthio)-2-methylpropionic acid) during the formation of quantum dot polymer films yields films characterized by high and stable quantum yields.
Certain dithio- compounds have been found to be superior capping ligands for quantum dot (QD) nanoparticles. Example dithio- ligands include dithiocarbamate ligands. These strongly binding ligands are capable of coordinating to both positive and negative atoms on the surface of the nanoparticle. The ligands are bi-dentate and thus their approach to the QD surface is not as sterically hindered as is the approach of mono-dentate ligands. These ligands can therefore completely saturate the QD surface.
Various methods are used to provide a desired doping metal concentration in a CIGS-containing ink when the CIGS layer is deposited on a photovoltaic device. When the doping metal is sodium, it may be incorporated by: adding a sodium salt, for example sodium acetate, together with the copper-, indium- and/or gallium-containing reagents at the beginning of the synthesis reaction of Cu(ln,Ga)(S,Se)2 nanoparticles; synthesizing Cu(ln,Ga)(S,Se)2 nanoparticles and adding a sodium salt to the reaction solution followed by mild heating before isolating the nanoparticles to aid sodium diffusion; and/or, using a ligand that is capable of capping the Cu(ln,Ga)(S,Se)2 nanoparticles with one end of its molecular chain and binding to sodium atoms with the other end of its chain.
A method for preparing CIGS absorber layers using CIGS nanoparticles on a substrate comprises one or more annealing steps that involve heating the CIGS nanoparticle film(s) to dry the film and possibly to fuse the CIGS nanoparticles together to form CIGS crystals. Generally, at least the final annealing step will induce particle fusion to form CIGS crystals. Reactive gas annealing has been found to facilitate the growth of larger grains in the resulting CIGS absorber layers and lead to improved photovoltaic performance of those layers. It is suspected that the presence of carbon in CIGS nanoparticle films hinders grain growth and limits the size of crystals which can be obtained in CIGS films upon annealing. It has been discovered that exposing the CIGS nanoparticle films to a reactive atmosphere containing sulfur can decrease the amount of carbon in the film, resulting in the growth of larger CIGS crystals upon annealing.
Quantum dots used to modify the spectral output of an LED exhibit less of a performance decrease (due to increased temperature) when incorporated in a chip on board (COB) as compared to conventional LED packages. A ceramic ring may be used to shield the quantum dots from the heat associated with connecting electrical leads to pads on the COB. The upper surface of the ceramic ring may be sealed with a glass disk or other transparent material.
H01L 25/075 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
H01L 33/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
C09K 11/62 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing gallium, indium or thallium
B22F 1/02 - Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition comprising coating of the powder
B01J 13/02 - Making microcapsules or microballoons
Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
The surfaces of nanoparticles (QDs) are modified with amphiphilic macromolecules, for example, amphiphilic copolymers. The surface modification renders the QDs more compatible with oxygen-excluding matrices, such as epoxy resin, polyurethane resin, polyester resins or any hydrophilic inorganic/organic hybrid resin such as (meth)acrylate-functionalized polyhedral oligomeric silsesquioxane (POSS).
A method for the preparation of CIGS-type core-shell nanoparticles produces core-shell nanoparticles that may include a quaternary or ternary metal chalcogenide core. The core may be substantially surrounded by a binary metal chalcogenide shell. A core- shell nanoparticle may be deposited on a PV cell contact (e.g., a molybdenum electrode) via solution-phase deposition. The deposited particles may then be melted or fused into a thin absorber film for use in a photovoltaic device.
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/0749 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type including a AIBIIICVI compound, e.g. CdS/CuInSe2 [CIS] heterojunction solar cells
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
68.
PREPARATION OF COPPER-RICH COPPER INDIUM (GALLIUM) DISELENIDE/DISULFIDE NANOPARTICLES
A method for the preparation of copper indium gallium diselenide/disulfide (CIGS) nanoparticles utilizes a copper-rich stoichiometry. The copper-rich CIGS nanoparticles are capped with organo-chalcogen ligands, rendering the nanoparticles processable in organic solvents. The nanoparticles may be deposited on a substrate and thermally processed in a chalcogen-rich atmosphere to facilitate conversion of the excess copper to copper selenide or copper sulfide that may act as a sintering flux to promote liquid phase sintering and thus the growth of large grains. The nanoparticles so produced may be used to fabricate CIGS-based photovoltaic devices.
H01L 31/00 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
H01L 31/0749 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type including a AIBIIICVI compound, e.g. CdS/CuInSe2 [CIS] heterojunction solar cells
H01L 31/0445 - PV modules or arrays of single PV cells including thin film solar cells, e.g. single thin film a-Si, CIS or CdTe solar cells
An LED device has a cap containing one or more quantum dot (QD) phosphors. The cap may be sized and configured to be integrated with standard LED packages. The QD phosphor may be held within the well of the LED package, so as to absorb the maximum amount of light emitted by the LED, but arranged in spaced-apart relation from the LED chip to avoid excessive heat that can lead to degradation of the QD phosphor(s). The packages may be manufactured and stored for subsequent assembly onto an LED device.
Embodiments of the present invention relate to a formulation for use in the fabrication of a light-emitting device, the formulation including a population of semiconductor nanoparticles incorporated into a plurality of discrete microbeads comprising an optically transparent medium, the nanoparticle-containing medium being embedded in a host light-emitting diode encapsulation medium. A method of preparing such a formulation is described. There is further provided a light-emitting device including a primary light source in optical communication with such a formulation and a method of fabricating the same.
A method for formulating a CIGS nanoparticle-based ink, which can be processed to form a thin film with a crack-free limit (CFL) of 500 nm or greater, comprises: dissolving or dispersing Cu(ln,Ga)S2 and Cu(ln,Ga)Se2 nanoparticles; mixing the nanoparticle solutions/dispersions and adding oleic acid to form an ink; depositing the ink on a substrate; annealing to remove the organic components of the ink formulation; forming a film with a CFL ≥ 500 nm; and, repeating the deposition and annealing process to form a CIGS film having a thickness ≥ 1 μιη. The film so produced may be incorporated into a thin film photovoltaic device.
Compositions for solution-based deposition of CIGS films are described. The compositions include ternary, quaternary or quinary chalcogenide nanoparticles (i.e., CIGS nanoparticles) and one or more inorganic salts dissolved or dispersed in a solvent to form an ink. The ink can be deposited on a substrate by conventional coating techniques and then annealed to form a crystalline layer. Further processing can be employed to fabricate a PV device. The inorganic salts are included to (i) tune the stoichiometry of the CIGS precursor ink to a desirable ratio, thus tuning the semiconductor band gap, to (ii) dope the CIGS layer with additives, such as Sb and/or Na, to promote grain growth, and/or to (iii) modify and improve the coating properties of the CIGS precursor ink.
A method of preparing metal oxide nanoparticles is described herein. The method involves reacting nanoparticle precursors in the presence of a population of molecular cluster compounds. The molecular cluster compound may or may not contain the same metal as will be present in the metal oxide nanoparticle. Likewise, the molecular cluster compound may or may not contain oxygen. The molecular cluster compounds acts a seeds or templates upon which nanoparticle growth is initiated. As the molecular cluster compounds are all identical, the identical nucleation sites result in highly monodisperse populations of metal oxide nanoparticles.
Multi-phase polymer films containing quantum dots (QDs) are described herein. The films have domains of primarily hydrophobic polymer and domains of primarily hydrophilic polymer. QDs, being generally more stable within a hydrophobic matrix, are dispersed primarily within the hydrophobic domains of the films. The hydrophilic domains tend to be effective at excluding oxygen.
The present invention relates to a method for producing encapsulated nanoparticles by dispersing said nanoparticles and an encapsulating medium in a common solvent to form a first solution system and treating said first solution system with a stimulus suitable to induce simultaneous aggregation of the nanoparticles and the encapsulating medium.
H01L 21/31 - Treatment of semiconductor bodies using processes or apparatus not provided for in groups to form insulating layers thereon, e.g. for masking or by using photolithographic techniquesAfter-treatment of these layersSelection of materials for these layers
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
A process for producing copper selenide nanoparticles by effecting conversion of a nanoparticle precursor composition comprising copper and selenide ions to the material of the copper selenide nanoparticles in the presence of a selenol compound. Copper selenide-containing films and CIGS semiconductor films produced using copper selenide as a fluxing agent are also disclosed.
H01L 21/00 - Processes or apparatus specially adapted for the manufacture or treatment of semiconductor or solid-state devices, or of parts thereof
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
A process for producing copper selenide nanoparticles by effecting conversion of a nanoparticle precursor composition comprising copper and selenide ions to the material of the copper selenide nanoparticles in the presence of a selenol compound. Copper selenide- containing films and CIGS semiconductor films produced using copper selenide as a fluxing agent are also disclosed.
Disclosed herein are articles for use in phototherapy utilizing quantum dots (QDs). One embodiment is a medical dressing having an occlusive layer and translucent layer. Quantum dot light-emitting diode chips are configured within the occlusive layer to provide light of a specific wavelength for use in phototherapy. Another embodiment is a medical dressing having an occlusive layer and translucent layer, wherein quantum dot material is embedded or impregnated within one or both layers.
A process for producing nanoparticles incorporating ions selected from groups 13, 16, and 11 or 12 of the periodic table is described. The process comprises effecting conversion of a nanoparticle precursor composition comprising said group 13, 16, and 11 or 12 ions to the material of the nanoparticles in the presence of a selenol compound. A process for fabricating a thin film comprising nanoparticles incorporating ions selected from groups 13, 16, and 11 or 12 of the periodic table is also described, as well as a process for producing a printable ink formulation comprising said nanoparticles.
H01B 1/02 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of metals or alloys
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/072 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
80.
GROUP III-V/ZINC CHALCOGENIDE ALLOYED SEMICONDUCTOR QUANTUM DOTS
A scalable method for the manufacture of narrow, bright, monodisperse, photo-luminescent quantum dots prepared in the presence of a Group ll-VI molecular seeding cluster fabricated in situ from a zinc salt and a thiol or selenol compound. Exemplary quantum dots have a core containing indium, phosphorus, zinc and either sulfur or selenium.
A scalable method for the manufacture of narrow, bright, monodisperse, photo-luminescent quantum dots prepared in the presence of a Group II-VI molecular seeding cluster fabricated in situ from a zinc salt and a thiol or selenol compound. Exemplary quantum dots have a core containing indium, phosphorus, zinc and either sulfur or selenium.
H01L 33/06 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
A process is disclosed for producing quantum dots (QDs) by reacting one or more core semiconductor precursors with phosphine in the presence of a molecular cluster compound. The core semiconductor precursor(s) provides elements that are incorporated into the QD core semiconductor material. The core semiconductor also incorporates phosphorus, which is provided by the phosphine. The phosphine may be provided to the reaction as a gas or may, alternatively, be provided as an adduct of another material.
Materials and methods for preparing Cu2ZnSnS4 (CZTS) layers for use in thin film photovoltaic (PV) cells are disclosed herein. The CZTS materials are nanoparticles prepared by a colloidal synthesis in the presence of a labile organothiol. The organothiol serves as both a sulphur source and as a capping ligand for the nanoparticles.
Disclosed herein are CIGS-based photon-absorbing layers disposed on a substrate. The photon-absorbing layers are useful in photovoltaic devices. The photon absorbing-layer is made of a semiconductor material having empirical formula AB1-xB'xC2-yC'y, where A is Cu, Zn, Ag or Cd; B and B' are independently A1, In or Ga; C and C' are independently S, or Se, and wherein 0 ≤ x ≤ 1; and 0 ≤ y ≤ 2. The grain size of the semiconductor material and the composition of the semiconductor material both vary as a function of depth across the layer. The layers described herein exhibit improved photovoltaic properties, including increased shunt resistance and decreased backside charge carrier recombination.
Materials and methods for preparing Cu2XSnY4 nanoparticles, wherein X is Zn, Cd, Hg, Ni, Co, Mn or Fe and Y is S or Se, (CXTY) are disclosed herein. The nanoparticles can be used to make layers for use in thin film photovoltaic (PV) cells. The CXTY materials are prepared by a colloidal synthesis in the presence of labile organo-chalcogens. The organo-chalcogens serves as both a chalcogen source for the nanoparticles and as a capping ligand for the nanoparticles.
Disclosed herein are coated beads made of a primary matrix material and containing a population of quantum dot nanoparticles. Each bead has a multi-layer surface coating. The layers can be two or more distinct surface coating materials. The surface coating materials may be inorganic materials and/or polymeric materials. A method of preparing such particles is also described. The coated beads are useful for composite materials for applications such as light-emitting devices.
4 nanoparticles, wherein X is Zn, Cd, Hg, Ni, Co, Mn or Fe and Y is S or Se, (CXTY) are disclosed herein. The nanoparticles can be used to make layers for use in thin film photovoltaic (PV) cells. The CXTY materials are prepared by a colloidal synthesis in the presence of labile organo-chalcogens. The organo-chalcogens serves as both a chalcogen source for the nanoparticles and as a capping ligand for the nanoparticles.
H01B 1/06 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances
H01L 31/0328 - Inorganic materials including, apart from doping materials or other impurities, semiconductor materials provided for in two or more of groups
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
H01B 1/10 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances sulfides
B82Y 40/00 - Manufacture or treatment of nanostructures
88.
Methods for preparing Cu2ZnSnS4 nanoparticles for use in thin film photovoltaic cells
4 (CZTS) layers for use in thin film photovoltaic (PV) cells are disclosed herein. The CZTS materials are nanoparticles prepared by a colloidal synthesis in the presence of a labile organothiol. The organothiol serves as both a sulphur source and as a capping ligand for the nanoparticles.
Methods for detecting disease in a patient are disclosed. The methods involve administering to the patient a quantum dot-analyte conjugate, which includes an analyte that binds to a marker for the disease in the patient's gastrointestinal tract. The analyte is conjugated to a quantum dot having a characteristic emission wavelength. Using an endoscopic modality, a physician can illuminate portions of the patient's gastrointestinal tract and detect the presence of the marker based on emission of the quantum dot. Also disclosed are methods of predicting a response to a treatment in a patient.
Nanoparticles containing lUPAC group 11 ions, group 13 ions and sulfur ions are synthesized by adding metal salts and an alkanethiol in an organic solvent and promoting the reaction by applying heat. Nanoparticles are formed at temperatures as low as 200°C. The nanoparticles may be thermally annealed for a certain amount of time at a temperature lower than the reaction temperature (usually ~40°C lower) to improve the topology and narrow the size distribution. After the reaction is complete, the nanoparticles may be isolated by the addition of a non-solvent and re-dispersed in organic solvents including toluene, chloroform and hexane to form a nanoparticle ink. Additives may be incorporated in the reaction solution to tailor the final ink viscosity.
A method for producing aqueous compatible semiconductor nanoparticles includes binding pre-modified ligands to nanoparticles without the need for further post-binding modification to render the nanoparticles aqueous compatible. Nanoparticles modified in this way may exhibit enhanced fluorescence and stability compared to aqueous compatible nanoparticles produced by methods requiring post-binding modification processes.
B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
B22F 9/06 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
Nanoparticles containing IUPAC group 11 ions, group 13 ions and sulfur ions are synthesized by adding metal salts and an alkanethiol in an organic solvent and promoting the reaction by applying heat. Nanoparticles are formed at temperatures as low as 200° C. The nanoparticles may be thermally annealed for a certain amount of time at a temperature lower than the reaction temperature (usually ˜40° C. lower) to improve the topology and narrow the size distribution. After the reaction is complete, the nanoparticles may be isolated by the addition of a non-solvent and re-dispersed in organic solvents including toluene, chloroform and hexane to form a nanoparticle ink. Additives may be incorporated in the reaction solution to tailor the final ink viscosity.
C30B 29/46 - Sulfur-, selenium- or tellurium-containing compounds
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
C30B 7/14 - Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions the crystallising materials being formed by chemical reactions in the solution
C30B 29/60 - Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape characterised by shape
93.
MOLYBDENUM SUBSTRATES FOR CIGS PHOTOVOLTAIC DEVICES
Photovoltaic (PV) devices and solution-based methods of making the same are described. The PV devices include a CIGS-type absorber layer formed on a molybdenum substrate. The molybdenum substrate includes a layer of low- density molybdenum proximate to the absorber layer. The presence of low- density molybdenum proximate to the absorber layer has been found to promote the growth of large grains of CIGS-type semiconductor material in the absorber layer.
H01L 31/0392 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their crystalline structure or particular orientation of the crystalline planes including thin films deposited on metallic or insulating substrates
H01L 31/0749 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices characterised by at least one potential-jump barrier or surface barrier the potential barriers being only of the PN heterojunction type including a AIBIIICVI compound, e.g. CdS/CuInSe2 [CIS] heterojunction solar cells
An illuminated sign (100) has a primary light source (101) in spaced apart relation to a transparent or translucent substrate (104) having quantum dot phosphors printed or coated thereon. The primary light source (101) may be a blue LED, a white LED or an LED having a significant portion of its emission in the ultraviolet region of the spectrum. The LED may be a backlight for the transparent or translucent substrate (104) and/or an edge light, a down light or an up light.
A method of preparing Group XIII selenide nanoparticles comprises reacting a Group XIII ion source with a selenol compound. The nanoparticles have an MxSey semiconductor core (where M is In or Ga) and an organic capping ligand attached to the core via a carbon-selenium bond. The selenol provides a source of selenium for incorporation into the semiconductor core and also provides the organic capping ligand. The nanoparticles are particularly suitable for solution-based methods of preparing semiconductor films.
y semiconductor core (where M is In or Ga) and an organic capping ligand attached to the core via a carbon-selenium bond. The selenol provides a source of selenium for incorporation into the semiconductor core and also provides the organic capping ligand. The nanoparticles are particularly suitable for solution-based methods of preparing semiconductor films.
H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
H01L 21/02 - Manufacture or treatment of semiconductor devices or of parts thereof
H01L 31/032 - Inorganic materials including, apart from doping materials or other impurities, only compounds not provided for in groups
H01L 31/0352 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
Compositions having luminescent properties are described. The compositions can include a luminescent material, such as quantum dots and a reflective material, such as barium sulfate, both suspended in a matrix material. The presence of the reflecting material increases the amount of light captured from the composition. The compositions described herein can be used in back-lighting for LCDs and can also be used in other applications, such as color conditioning of ambient lighting.
By forming nanoparticles from gas-phase precursors within cracks or defects in a gas-barrier film, crack-width may be determined from the diameter of the nanoparticles formed within. The optical absorption and emission wavelengths of a quantum dot are governed by the particle size. For a particular material, the absorption and/or emission wavelengths may therefore be correlated to the particle size (as determined from techniques such as transmission electron microscopy, TEM). Thus, fluorescence measurement techniques and/or confocal microscopy may be used to determine the size of quantum dots formed within a gas-barrier film, allowing both the size and nature of a defect to be determined. The method may be used to assess the potential effects of defects on the integrity of the gas-barrier film.
Quantum dot (QD) LEDs useful for plant, a!gael and photosynihetic bacterial growth applications. The QD LEDs utilizes a solid state LED (typically emitting blue or UV light) as the primary light source and one or more QD elements as a secondary light source that down-converts the primary light. The emission profile of the QD LED can be tuned to correspond to the absorbance spectrum of one or more photosynthetic pigments of the organism.
A molded nanoparticle phosphor for light emitting applications is fabricated by converting a suspension of nanoparticles in a matrix material precursor into a molded nanoparticle phosphor. The matrix material can be any material in which the nanoparticles are dispersible and which is moldable. The molded nanoparticle phosphor can be formed from the matrix material precursor/nanoparticle suspension using any molding technique, such as polymerization molding, contact molding, extrusion molding, injection molding, for example. Once molded, the molded nanoparticle phosphor can be coated with a gas barrier material, for example, a polymer, metal oxide, metal nitride or a glass. The barrier-coated molded nanoparticle phosphor can be utilized in a light-emitting device, such as an LED. For example, the phosphor can be incorporated into the packaging of a standard solid state LED and used to down-convert a portion of the emission of the solid state LED emitter.
C09D 165/00 - Coating compositions based on macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chainCoating compositions based on derivatives of such polymers
B82Y 40/00 - Manufacture or treatment of nanostructures
C09D 4/00 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond
