1427 results about "Optoelectronic materials" patented technology

The invention discloses a nitrogen doped carbon quantum dot as well as a preparation method and an application thereof, belonging to the technical field of material science. The preparation method comprises the steps: after mixing organic acid and organic amine, directly performing a hydrothermal reaction to prepare a nitrogen doped carbon quantum dot water dispersion solution, and extracting and drying the nitrogen doped carbon quantum dot water dispersion solution to obtain a nitrogen doped carbon quantum dot solid. The size of the nitrogen doped carbon quantum dot is not more than 10 nm, the nitrogen content is not more than 50 percent, the surface of the nitrogen doped carbon quantum dot contains amino, carboxyl and hydroxyl; and the quantum efficiency is 39.8-50 percent. The preparation method is simple to operate, environment-friendly, low in equipment requirement; and the prepared nitrogen doped carbon quantum dot has excellent light emitting property, and can be widely applied to fields such as photoelectric materials, biological imaging and fluorescence probe.

Significantly faster state transitioning time between the optimal optical density for viewing 2D Movies as 3D movies through Continuous Adjustable 3Deeps Filter Spectacles can be achieved by using multiple layers (multi-layer) of electronically controlled variable tint materials to fabricate the right and left lenses of the 3Deeps spectacles. The use of multi-layered lenses may result in as much as a 50% decrease in transition time between states. The invention also relates to Multi-Use Electronically Controlled Continuous Adjustable 3Deeps Filter Spectacles that house within a single spectacle frame several layers of optoelectronic material in which each layer of electronically controlled relates to a different method of viewing.

The invention discloses a preparation method of 1-(4-(4-(1H-1,2,4-triazolyl-1-yl)phenoxy)phenyl)-1H-1,2,4-triazole. The organic compound is prepared by heating 4,4'-dibromodiphenyl ether, triazole, potassium carbonate and copper oxide by a one-pot process. The preparation method has the characteristics of simple technological operation, low production cost and low environmental pollution, and is suitable for large-scale industrial production. The invention also discloses application of the 1-(4-(4-(1H-1,2,4-triazolyl-1-yl)phenoxy)phenyl)-1H-1,2,4-triazole in photoelectric materials.

The invention relates to an organic optoelectronic material, a preparation method of the organic optoelectronic material and an organic light emitting diode containing the organic material. The material is shown in the formula I, wherein R1 and R2 are respectively and independently hydrogen, halogen, cyanogroup, nitryl, isothiocyano, sulfonyl, sulfuryl, acylamino, alkyl of which the carbon atom number is 1 to 10 or alkoxy of which the carbon atom number is 1 to 12; A1 and A2 are respectively and independently phenyl, polycyclic conjugate aryl of which the carbon atom number is 10 to 60 or aromatic heterocyclic group containing at least one of N, S and O; two phenyls having groups R1 and R2 and two para-positions relative to the groups R1 and R2 are connected by directly bonding or connected through X; A1 is connected with A2 by directly bonding or through Y; X and Y are respectively and independently sulphur, oxygen, alkylene of which the carbon atom number is 1 to 6 or alkenyl of which the carbon atom number is 2 to 6; Ar1 and Ar2 are respectively and independently phenyl, cyanophenyl, alkyl benzene, polycyclic conjugate aryl of which the carbon atom number is 10 to 60 or aromatic heterocyclic group containing at least one of N, S and O.

The invention relates to a method for synthesizing a metal oxide-coated heterogeneous metal core-shell type nanometer particle, which belongs to the technical field of synthesizing nanometer composite material. The method is characterized in that metal and heterogeneous metal oxide micron powder is used as raw material and evenly mixed and pressed into block target material to be used as an anode. Hydrogen plasma is utilized as the heat source; the block target material is evaporated, and the core-shell type nanometer composite particle material is formed after the transformation of gaseous state-liquid state-solid state. The effect and advantage of the invention lies in that the root position-coating of the metal oxide pottery material to heterogeneous metal is realized in the process of evaporation and condensation; the invention is characterized by a simple method, low cost, little impurity, regular shape of the particle, and application to large scale production. The method can be used for preparing the core-shell type nanometer composite particles of a large variety of matters, and has wide application prospect in the fields of electromagnetic absorption / shielding, biomedicine, optoelectronic material, magnetic material, electrorheological fluid, and functional paint, etc.

The invention, belonging to photoelectric material scientific and technical sphere, relates the new handling method of diarylamine and carbazoles materials and the application as the hole transmission material. Compared with the untreated material, the dead-end diarylamine and carbazoles poessess the high heat stability and glass transition temperature. Comprared with the other methods of preparing the material, the handling method has the following advantages: 1. convenient handling method, simple technology; 2. mild reaction condition, not needing transient metal accelerant; 3. high productivity, direct processing polymeric material; 4. mass production. The said hole transmission material will become the photoelectric material of low cost and commercialization potentiality.

The invention discloses a nitrogen-doped fluorescent carbon quantum dot and a preparation method and application thereof, and belongs to the technical field of material science. Fish wastes (such as fish scales, bones and skins) are cleaned, then hydrothermal reaction is directly performed to obtain nitrogen-doped fluorescent carbon quantum dot aqueous dispersion, and finally filtration, dialysis and freeze-drying are performed to obtain nitrogen-doped fluorescent carbon quantum dot solid. The size of the nitrogen-doped fluorescent carbon quantum dot prepared by using the preparation method disclosed by the invention is smaller than or equal to 10nm, the nitrogen content is smaller than or equal to 20 percent, the surface of the quantum dot has nitrogen-containing and oxygen-containing functional groups, and the quantum efficiency is 17-30 percent. The nitrogen-doped fluorescent carbon quantum dot and the preparation method and application thereof have the advantages that the preparation method is environmental-friendly, the operation is simple, the requirements on equipment are low, the preparation method is suitable for large-scale production, and the prepared nitrogen-doped fluorescent carbon quantum dot has excellent fluorescent performance and can be widely applied to fields such as photoelectric materials, biological imaging and fluorescent probes.

An organic optoelectronic device includes a substrate having an upper surface and a lower surface, at least one organic diode situated on the upper surface of the substrate, the organic diode including, an anode including a material of high work function situated over the upper surface of the substrate, an organic optoelectronic material at least partially overlaying the anode, a cathode including a material of low work function at least partially overlaying the organic optoelectronic material, the cathode being transparent or semi-transparent, wherein the substrate includes at least one connecting via extending through the substrate from the lower surface to the upper surface, the connecting via being suitable for providing an electrical connection between at least one of the anode and / or the cathode of the organic diode and an external circuit. The invention has application in organic light emitting devices and organic photovoltaic devices.

The invention relates to the technical field of organic photoelectric materials, and in particular, relates to an organic compound, an electronic element containing the same and an electronic device.The compound has a structure represented by a chemical formula 1', wherein one of R1, R2, R3 and R4 is a group defined in the specification, and the other three are selected from substituents such asalkyl, halogen and cyano; one of R5, R6, R7 and R8 is a group defined in the specification, the other three are selected from substituents such as alkyl, halogen and cyano, Y and Y1 are respectively and independently a group defined in the specification, and L and L1 are single bonds, aryl, heteroaryl and the like. By using the organic compound in an electronic component, the driving voltage, luminous efficiency, and life of the electronic component are improved.

The invention discloses a phenyl bistriazole compound, and a preparation method and application thereof, and particularly relates to a 1-[4-(1H-1,2,4-triazole-1-yl)phenyl]-1H-1,2,4-triazole single crystal and a preparation method of 1-[4-(1H-1,2,4-triazole-1-yl)phenyl]-1H-1,2,4-triazole. The organic compound is prepared by heating ethylenediamine, 1H-1,2,4-triazole, potassium carbonate, 1,4-diiodobenzene and cuprous iodide through a one-pot method. The preparation method disclosed by the invention has the characteristics simple process operation, low production cost and less environmental pollution, and is suitable for large-scale industrial production. The 1-[4-(1H-1,2,4-triazole-1-yl)phenyl]-1H-1,2,4-triazole single crystal prepared by the invention can be used in the aspect of photoelectric materials, especially dye and luminescent agents.

The invention belongs to the technical field of organic photoelectric materials, and discloses a tetraphenylethylene-containing organic semiconductor material and a preparation method thereof, and application of the material in organic photoelectric devices. The tetraphenylethylene-containing organic semiconductor material is disclosed as Formula I or II, wherein R1, R2, R3, R4 and R5 can be identical or different aromatic ring derivative groups. Different modification groups can be connected to the tetraphenylethylene to regulate the electronic or hole transmission performance of the tetraphenylethylene derivatives, so that the organic semiconductor material not only can be used as a luminescent layer, but also can be used as a luminescent layer and current carrier transmission layer, thereby obtaining the electroluminescent devices with favorable photoelectric properties, simple structure and low cost; and the organic semiconductor material has wide application prospects in the fields of organic electroluminescence, organic field-effect transistors, organic solar cells and other organic electronics.

The invention provides an arylamine compound and an organic light-emitting device thereof and relates to the technical field of organic photoelectric materials. According to the arylamine compound, adibenzothienyl group / dibenzofuranyl group / carbazolyl group is connected onto an arylamine group to serve as a bridging group, and oxazole / thiazole / imidazole and its derivative are connected, so that aseries of compounds are obtained, the compounds have higher glass transition temperatures and good thermal stability, and the prepared organic light-emitting device has the advantage of long servicelife. In addition, the arylamine compound is high in refractive index, can reduce total emission loss and waveguide loss and improve light extraction efficiency, thereby improving the light emitting efficiency. The arylamine compound is good in film-forming property, simple in synthesis and easy to operate, and can be widely applied to the fields of panel display, illumination light sources, organic solar cells, organic photoreceptors, organic thin film transistors and the like.

The invention relates to a method for preparing few-layer black scales by ultrasonically stripping a black scale. The method comprises the steps of uniformly mixing black scale powder and an intercalator in an organic solvent according to a given ratio to obtain a mixture, insulating the air, ultrasonically treating the mixture in water bath, and carrying out vacuum suction filtration and vacuum drying to obtain a few-layer black scale material. A series of compounds such as cetyl trimethyl ammonium bromide, phenanthrene and naphthalene are used as the intercalator to prepare the few-layer black scale. Compared with the prior art, the prepared few-layer black scale has advantages of few defects, few impurities, high quality and the like. Meanwhile, the process is simple to operate and low in cost, and the prepared few-layer black scale is expected to substitute the graphene material to be applied to the field of a photoelectric material.

The invention discloses a method for preparing a polymer by micro-scale photo-induced organic catalysis. The method comprises the following steps: using alkyl halide as an initiator in a microreactor; and using an organic small molecule as a catalyst to catalyze atom-transfer radical-polymerization, so as to prepare the polymer. Compared with the prior art, the method provided by the invention has advantages of high reaction speed, controllable molecular weight and molecular weight distribution of a polymerization product, no residue, and wide application in fields of optoelectronic materials and biomedical materials.

The invention provides a triarylamine compound and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. According to the invention, a substituted or unsubstituted 9-phenyl-fluorene group and a triarylamine group containing benzoxazole / benzothiazole / benzimidazole / benzotriazole undergoes a reaction to obtain the triarylamine compound by9-position (tertiary C) connection of fluorene. The triarylamine compound has a good hole transport capability, is high in glass transition temperature, good in thermal stability, good in film-forming property, high in refractive index and simple to synthesize, can be applied to an organic electroluminescent device to serve as a hole transport layer and / or a covering layer, can effectively solvethe problems of low luminous efficiency and short service life of the organic electroluminescent device, and has the advantages of high luminous efficiency and long service life.

The invention discloses magnetic aerogel and a preparation method thereof. The preparation method comprises the following steps: loading ferroferric oxide magnetic nanoparticles by taking graphene oxide as a carrier, improving the morphological stability by taking a carbon nano tube as a framework or by using a calcium ion cross-linking effect, freezing and drying to obtain graphene oxide magnetic aerogel, and performing chemical reduction so as to obtain the graphene magnetic aerogel. On the basis of maintaining the ferroferric oxide magnetic effect, the aerogel also has the advantages of low density, great strength, high-temperature resistance and large specific surface area; due to the structure characteristic, the aerogel has the super strong absorption capacity, wave absorption capacity and conductivity; the magnetic aerogel can be used in the fields of sewage treatment, target administration, wave absorption materials and photoelectric materials. The magnetic aerogel is a novel functional magnetic material.

The invention discloses a method for synthesis of a double-casing layer carbon nanometer hollow polyhedron by a metal-organic framework as a template and belongs to the field of novel energy and novel materials. The method comprises that a zeolitic imidazolate framework with a core-shell nanometer structure as a structure precursor is calcined at a high temperature to form the double-casing layer nanometer carbon hollow polyhedron. The cheap and easily available zeolitic imidazolate framework as a structure precursor is used for preparation of the double-casing layer carbon nanometer hollow polyhedron. The method has simple processes, is free of a template, realizes precise control of a shell structure by change of a zinc / cobalt-based zeolitic imidazolate framework ratio or calcining conditions, is environmentally friendly and can be industrialized easily. The double-casing layer carbon nanometer hollow polyhedron has a wide application prospect in the fields of energy storage, catalysis, photoelectric materials and drug transport.

The invention provides an aromatic amine compound containing 9,9'-spirobifluorene and dibenzothiophene and an organic electroluminescent device thereof, and relates to the technical field of organic photoelectric materials. The compound has a simple preparation method, easily available raw materials, good hole transport capability and stability, can realize charge balance in a light-emitting layer, has a suitable highest occupied molecular orbital energy level, a high T1 value and a high refractive index, can remarkably improve the light emitting efficiency, the heat resistance and the servicelife of the device when applied to an OLED device, and can also effectively reduce the driving voltage of the device, thereby being an OLED material with excellent performance.

A method for the fabrication of nanostructured semiconducting, photoconductive, photovoltaic, optoelectronic and electrical battery thin films and materials at low temperature, with no molecular template and no organic contaminants. High-quality metal oxide semiconductor, photovoltaic and optoelectronic materials can be fabricated with nanometer-scale dimensions and high dopant densities through the use of low-temperature biologically inspired synthesis routes, without the use of any biological or biochemical templates.

The invention relates to a novel process for preparing an organic-inorganic perovskite thin film through adopting an experimental scheme in which two kinds of metal compounds are adopted as precursors. With the novel process adopted, an efficient solar battery device with a planar structure can be prepared. According to the novel process, the two kinds of metal compound precursors are compounded, and therefore, a pinhole defect of the perovskite thin film can be effectively avoided, and compound of electrons and holes can be alleviated, and short-circuiting risks of the perovskite thin film can be decreased. The novel process of the invention belongs to the photoelectric material field and is characterized in that the two kinds of metal compounds are selected as a source of metal ions in a perovskite material, wherein the general formula of the organic-inorganic perovskite material is ABX3, wherein A is CH3NH3 or NH2-CH=NH2, B is Pb or Sn, and X is I or Br. With the preparation method adopted, the thickness of the perovskite thin film is uniform, and the crystallinity of the perovskite thin film is high, the perovskite thin film can have high electron and hole transport ability. The preparation method is suitable for large-area preparation of organic-inorganic perovskite solar battery devices with planar structures.

The invention belongs to the technical field of organic photoelectric materials, in particular to pyrazine-ring-containing organic dyes and a synthesis method and use thereof. The pyrazine-ring-containing organic dyes disclosed by the invention have high light trapping capacity; and as the dye molecules take the pyrazine rings as electron-withdrawing groups, the absorption spectrum and fluorescence spectrum of the dyes can be regulated by using different numbers of different aromatic nucleus. Compared with ruthenium dyes, the dyes disclosed by the invention are made of simple, cheap and readily available raw materials and easy to be purified and have the advantages of low cost and easy preparation and the like. In addition, pyrazine and derivatives thereof have high photoelectric properties, such as electronic transmission capacity and strong electron withdrawing capacity, and therefore are high-quality photovoltaic materials; and when applied to dye sensitized solar cells, the dyes can achieve energy conversion efficiency of 8 percent.

The invention belongs to the technical field of organic optoelectronic materials, and particularly relates to an A-D-A type conjugated molecule based on dibenzo pentabasic fused heterocycle and a preparation method and application of the A-D-A type conjugated molecule. The dibenzo pentabasic fused heterocycle is adopted as a core, pentabasic fused heterocycle is adopted as a bridge joint unit, and the tail end is connected with the A-D-A type conjugated molecule of an electron-deficient unit. The A-D-A type conjugated molecule based on the dibenzo pentabasic fused heterocycle and the preparation method and application of the A-D-A type conjugated molecule have the advantages that preparation is novel, operation is easy, and product separation and purification are easy. In addition, the A-D-A type conjugated molecule based on the dibenzo pentabasic fused heterocycle has good solubleness and stability, has a wide spectral absorption range and a proper level structure and is expected to be used as a donor or acceptor material of an organic solar cell.

The invention discloses a method for preparing graphene quantum dots through a carbon nano tube. The method comprises the following steps of: adding a mixed solution of nitric acid and sulfuric acid into the carbon nano tube, heating in a water bath, magnetically stirring, cooling to room temperature, diluting by using distilled water, regulating the pH value, performing dialysis and ultrafiltration centrifugation, and extracting through an organic solvent, so as to prepare the graphene quantum dots. The carbon nano tube which is diversified in growth modes and easy to control serves as a raw material, the graphene quantum dots are prepared through simple and controllable water bath heating and stirring operation; and the graphene quantum dot has the characteristics of good fluorescence effect, controllable fluorescence range, water solubility and the like, can be soluble with most of polymers through extraction and can be applied to the improvement of the device performance in photoelectric materials and devices.

This invention relates to compounds and compositions used to prepare semiconductor and optoelectronic materials and devices. This invention provides a range of compounds, compositions, materials and methods directed ultimately toward photovoltaic applications, as well as devices and systems for energy conversion, including solar cells. In particular, this invention relates to molecular precursor compounds and precursor materials for preparing photovoltaic layers.

This invention relates to methods for materials using compounds, polymeric compounds, and compositions used to prepare semiconductor and optoelectronic materials and devices including thin film and band gap materials. This invention provides a range of compounds, polymeric compounds, compositions, materials and methods directed ultimately toward photovoltaic applications, transparent conductive materials, as well as devices and systems for energy conversion, including solar cells. This invention further relates to thin film CA(I,G,A)S, CAIGAS, A(I,G,A)S, AIGAS, C(I,G,A)S, and CIGAS materials made by a process of providing one or more polymeric precursor compounds or inks thereof, providing a substrate, depositing the compounds or inks onto the substrate; and heating the substrate at a temperature of from about 20° C. to about 650° C.

This invention relates to methods for making materials using a range of compounds, polymeric compounds, and compositions used to prepare semiconductor and optoelectronic materials and devices including thin film and band gap materials for photovoltaic applications including devices and systems for energy conversion and solar cells. In particular, this invention relates to polymeric precursor compounds and precursor materials for preparing photovoltaic layers. This invention further relates to methods for making a CIGS, CIS or CGS material by providing one or more polymeric precursor compounds or inks thereof, providing a substrate, depositing the compounds or inks onto the substrate; and heating the substrate at a temperature of from about 20° C. to about 650° C.

The invention discloses a triarylated amine derivative and an organic electroluminescence device with the same, and relates to the technical field of organic photoelectric materials. The triarylated amine derivative has a large conjugated system, thereby having high hole mobility and presenting good hole transmissibility; in addition, the triarylated amine derivative has high thermal stability anddissolubility and is beneficial for material film forming. The organic electroluminescence device comprises a cathode, an anode and one or more organic matter layers. The organic matter layers are located between the cathode and the anode. At least one of the organic matter layers contains the triarylated amine derivative. The organic electroluminescence device has low driving voltages, high light-emitting efficiency, light-emitting luminance and long service life.

An organic solar cell material and the preparation thereof belong to the field of organic photoelectric materials. The invention discloses an organic solar cell material which contains C60-triphenylamine-thiofuran ternary system which is a fullerene-contained D-A (Donor-Accepter) type difunctional material, wherein the triphenylamine and the thiofuran are in stellated structure. Compared with the fullerene, the compound has greatly improved solubility in organic solvent, so that the process for manufacturing the large-area solar cell is simplified, stronger absorption is ensured in a visible region with a maximum of about 500 nm that is similar to the maximum of solar radiation energy of 475 nm, matching of the compound and solar spectrum radiation is enhanced, solar spectrum response of the material, as well as the photoelectric conversion efficiency is improved. In the invention, the compound can be polymerized on a macromolecule through simple ligand modification, and is made into PLED by spin coating, so as to overcome the defects of possible decomposition by heating and poor crystallization-resistant performance of the small-molecule luminescent material in the evaporation process.

The invention discloses a luminescence auxiliary material, a preparation method thereof and an organic electroluminescence device, and belongs to the field of chemical synthesis and photoelectric materials. The structural general formula is shown in the specification, in the formula, Ar1, ar2 and Ar3 are each independently one or more of substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C3-C30 cycloalkyl, substituted or unsubstituted 3-to 30-membered heterocycloalkyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C1-C30 alkylamino, substituted orunsubstituted C1-C30 alkoxy, substituted or unsubstituted C6-C30 arylamino, substituted or unsubstituted 3-to 30-membered heteroaryl, substituted or unsubstituted C10-C30 fused ring group, substitutedor unsubstituted C5-C30 spiro ring group. The luminescent auxiliary material can improve the luminescent efficiency and the service life of the organic electroluminescent device.