370 results about "Optoelectronic materials" patented technology

The invention relates to the technical field of polymer photoelectric materials, in particular to a preparation method of a supramolecular gel electrolyte. The method comprises the following steps: esterifying tetraphenylethylene alcohol and methacryloyl chloride to form tetraphenylethylene methacrylate, and performing staged linear heating polymerization on the tetraphenylethylene methacrylate, 3-(methacrylamido) propyl dimethyl 3-thiopropyl ammonium oxide inner salt, acrylic acid, tetraphenylethylene methacrylate and 4-vinylpyridine under the action of ammonium persulfate to obtain a tetraphenylethylene copolymer. And finally, soaking in a lithium chloride aqueous solution to obtain the supramolecular hydrogel electrolyte. The hydrogel obtained by the invention has high mechanical strength and high ionic conductivity, and is suitable for energy storage devices such as flexible supercapacitors and the like.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to a boron-nitrogen compound and an organic electroluminescent device comprising the same. The boron-nitrogen compound disclosed by the invention has good electron and hole receiving capability, and interaction among luminescent molecules can be effectively inhibited by introducing a spirocyclic group with large steric hindrance. Specifically, the boron-nitrogen compound provided by the invention is used as a functional layer, especially as an organic electroluminescent device manufactured by a luminescent layer, the current efficiency is improved, the efficiency of the device is greatly improved, and the service life of the device is greatly prolonged. Therefore, after most electrons and holes are compounded, energy is effectively transferred to the boron-nitrogen compound, so that high luminous efficiency is realized.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a carbazole derivative and an organic electroluminescent device thereof. The carbazole derivative provided by the invention has proper HOMO energy level and LUMO energy level, can be well matched with an adjacent organic functional layer, also has proper charge transfer performance, also has good thermal stability and chemical stability and good film-forming property, and can be used as a main body material in a luminescent layer to improve the luminous efficiency of the luminescent layer. And the driving voltage, luminous efficiency, service life and other performances of the device can be improved.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to a boron-nitrogen compound and an organic electroluminescent device comprising the same. The boron-nitrogen compound disclosed by the invention has good electron and hole receiving capability, and interaction among luminescent molecules can be effectively inhibited by introducing large-steric-hindrance azafluorene / benzfluorene / azabenzfluorene / silafluorene / germanium heterofluorene and other groups. The energy transmission performance between a subject and an object or a sensitizer can be improved by a large conjugated spiro structure unit, an sp2 aza-aromatic ring and other structures. Specifically, the boron-nitrogen compound provided by the invention is used as a functional layer, especially as an organic electroluminescent device manufactured by a luminescent layer, the current efficiency is improved, the lighting voltage is reduced, and meanwhile, the service life of the device is greatly prolonged. Therefore, after most electrons and holes are compounded, energy is effectively transferred to the boron-nitrogen compound, so that high luminous efficiency is realized.

The invention belongs to the technical field of photoelectric materials and devices, and particularly relates to a perovskite thin film and a preparation method and application thereof. A fluorine-containing phosphazene compound is used as a ligand and is mixed with a perovskite precursor solution composed of lead iodide, formamidine iodine and cesium iodide, spin coating is performed, the fluorine-containing phosphazene compound and part of formamidine cations form hydrogen bonds, part of formamidine cations are anchored at the bottom of a perovskite film, Cs-formamidine cations are uniformly distributed, and the perovskite film is prepared. Meanwhile, the fluorine-containing phosphazene compound and Pb < 2 + > form a coordinate bond, Pb < 2 + > defects are passivated, and the perovskite thin film is obtained through anti-solvent treatment and annealing treatment. The fluorine-containing phosphazene compound interacts with the components in the perovskite precursor solution, so that the nucleation rate of perovskite can be increased, the crystallization rate can be slowed down, the tensile stress can be eliminated, the perovskite does not enter crystal lattices, and the stability and crystallinity of the film are guaranteed. The perovskite thin film can be used for an inverted perovskite solar cell, and the performance and the stability of a device are improved.

The invention discloses a screening and conveying platform for photoelectric material production, and belongs to the technical field of photoelectric material production equipment.The screening and conveying platform comprises a supporting base and a limiting machine, a pair of supporting frames are arranged at the top end of the supporting base in the length direction, and a supporting edge beam is arranged at the top end of each supporting frame; the two ends of the two supporting edge beams are rotationally connected with a first conveying roller and a second conveying roller correspondingly, and a conveying belt is arranged between the first conveying roller and the second conveying roller in a sleeving mode. The two limiting mechanisms are arranged at the top ends of the supporting edge beams in parallel. A limiting groove is formed in each limiting mechanism, at least one electric telescopic rod is arranged in each limiting groove, and the telescopic ends of the multiple electric telescopic rods arranged in the same direction are fixedly connected with a limiting push plate capable of stretching into the area above the conveying belt. The problem of displacement caused by vibration or improper placement in the conveying process of the photoelectric materials is effectively solved, accurate positioning and fixing of the materials are achieved, and therefore the accuracy and efficiency of follow-up automatic screening are improved.

The present invention relates to the technical field of the preparation of organic photoelectric materials, and particularly relates to an OLED with a deuterated boron-nitrogen compound, and an organic electroluminescent device. In the organic electroluminescent device of the present invention, the deuterated boron-nitrogen compound is used, and the light-emitting characteristic of the compound can be improved by means of the combination of deuterated phenyl of a defined site in a parent nucleus and a defined group. The boron-nitrogen compound provided in the present invention is used as a light-emitting layer material, such that the organic electroluminescent device can effectively have a lower driving voltage and maintain the stability of the voltage, and the light-emitting efficiency is improved.

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a boron-nitrogen heterocyclic compound and an organic electroluminescent device thereof. The boron-nitrogen heterocyclic compound provided by the invention has relatively large steric hindrance, on one hand, molecular vibration is reduced, and the boron-nitrogen heterocyclic compound has relatively narrow half-peak width and can effectively improve the color purity of light emitted by a device; on the other hand, the distance between molecules is increased, the acting force between the molecules is weakened, quenching caused by aggregation is overcome, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.

The present application relates to the technical field of organic photoelectric material, in particular to a kind of arylamine compound and organic electroluminescent device thereof.The arylamine compound shown in formula (I) provided by the present application has good hole migration ability, and proper HOMO and T1 value, is applied to OLED device as hole transport material, can improve the transmission efficiency of hole, collocates other functional layer, can improve the luminous efficiency of device;It also has good stability, can resist high temperature and corrosive gas, thereby prolonging the service life of device;The arylamine compound also has good space configuration, excellent arrangement between molecules, good film-forming property, further improve the luminous efficiency and service life of device.Summarized above, the arylamine compound provided by the present application has the advantages of proper energy level, good stability, good film-forming property etc., can be used as hole transport material, can also be used as the host material of light-emitting layer and cover layer material, is a kind of excellent performance, widely used OLED material.

The invention relates to the technical field of sensing of magnetic nano photoelectric materials, in particular to a responsive microsphere based on a three-dimensional magnetic photonic crystal and a preparation method and application thereof, and the responsive microsphere is formed by arranging polyhydroxy compound modified magnetic nanoparticles in a spherical polymer into a non-close packing face-centered cubic or body-centered cubic structure. The responsive microsphere based on the three-dimensional magnetic photonic crystal is easy in color distinguishing, has no angle dependence, does not need to depend on a fluorescent dye or a radioactive label, can realize real-time and in-situ monitoring through own optical characteristics, breaks through the bottlenecks of sensitivity and resolution of a traditional sensor, realizes visual detection, simplifies the detection process, and is suitable for mass production. The cost is reduced. According to the responsive microsphere based on the three-dimensional magnetic photonic crystal, the substance diffusion path is shortened through the small size of the responsive microsphere, and the response speed is remarkably increased in combination with the high specific surface area.

The application provides a cyclic imide derivative with a high-efficiency multi-exciton effect and a synthesis method and application thereof, and belongs to the technical field of organic optoelectronic materials. The cyclic imide derivative has any one of the following structural formulae: wherein n is 1 or 2 or 3; m is an integer in 1-15; Ar represents an aryl group; and R is selected from a substituted or unsubstituted C1-C15 alkyl chain or a phenyl chain. The application directly synthesizes a novel cyclic compound through a synthesis method, and a series of different cyclic imide compounds can be further synthesized by changing the number of aryl groups on the ring and the type of imide compounds. Experimental tests prove that the cyclic imide compound can be applied in the field of singlet fission materials, and excellent bipolar transport performance is exhibited when the cyclic imide compound is applied in an organic field effect transistor device, so the cyclic imide compound has a good industrial application prospect.

The application relates to the technical field of organic photoelectric material preparation, in particular to an organic electroluminescent device and an illumination or display device containing the same. In the organic electroluminescent device, a compound containing a benzopentaheterocyclic ring fused phenanthryl group as a key group is used for the covering layer, and the hole blocking layer of the limited material can improve the light emission and light extraction efficiency of the device, improve the dependence on the angle, effectively improve the light emission efficiency of the organic electroluminescent device, and has a good application prospect.

The invention relates to a method for reconstructing an interface state of a perovskite light absorption layer and an electron transport layer based on molecular bridge engineering and application of the method in a solar cell, and belongs to the field of photoelectric materials and devices. The method mainly comprises the following steps: dissolving interface modified micromolecules (a compound simultaneously containing carbonyl, sulfonyl or nitryl strong electron withdrawing groups and benzene rings, pyridine or thiophene aromatic groups) to obtain an interface modified solution, spin-coating the interface modified solution on a perovskite thin film, annealing, and depositing a fullerene electron transport layer to obtain the fullerene electron transport layer. And the perovskite light absorption layer / fullerene electron transport layer interface can be reconstructed. According to the method, perovskite defects can be passivated, distribution of the fullerene derivative electron transport layer is dispersed, and interface adsorption is enhanced. A solar cell is prepared based on the modified perovskite light absorption layer / fullerene electron transport layer, and the photoelectric conversion efficiency and the working stability of the device are obviously improved.

The invention provides a carbazole compound and an organic electroluminescent device thereof, and particularly relates to the technical field of organic photoelectric materials. The carbazole compound provided by the invention has excellent triplet state energy level characteristics, efficient carrier transport capability, good film-forming stability and structural durability when being applied to a light-emitting layer in a device. The luminous efficiency of the device can be greatly improved, the driving voltage is effectively reduced, and the service life of the device is prolonged. The organic electroluminescence display panel is suitable for a traditional organic electroluminescence display panel, can also be widely applied to the fields of organic light-emitting diode illumination, flexible display modules and the like, and has remarkable technical practicability and wide industrialization prospects.

The present application relates to the technical field of organic optoelectronic materials and devices, in particular to a preparation method of white organic light-emitting diodes based on a kind of blue, yellow and other color cMa copper (I) TADF complex with nitrogen heterocyclic carbene-copper-arylamines structure, including three steps: first, synthesis of cMa type copper (I) TADF complex containing blue light emitter and yellow light emitter as representative, obtained by ligand selection, intermediate preparation and purification;Second, construct layered WOLEDs device, from bottom to top in turn for substrate, ITO anode, hole injection layer, hole transport layer, buffer layer, yellow light emitting layer, blue light emitting layer, electron transport layer, electron injection layer and Al cathode;Third, through substrate pretreatment, mbar high vacuum evaporation and nitrogen glove box packaging complete device preparation.The WOLEDs device W1, W2 prepared by the present application has excellent photoelectric performance, the CRI is up to 83, the maximum external quantum efficiency is greater than or equal to 13.3%, has good stability and low cost, and is suitable for lighting and display fields.

This invention relates to a fullerene derivative, its preparation method and application, and a tin-based perovskite solar cell photovoltaic device, belonging to the field of optoelectronic materials and devices technology. The fullerene derivative of this invention has the structure shown in Formula I; in Formula I, X... ‑ It is a halide ion or pseudohalogen ion; R is an alkenyl, four-membered cycloalkyl, or dithiocyclopentyl; Fu is C 60 C 70 C 84 Alternatively, it can be an embedded metallofullerene. In the fullerene derivatives of this invention, R is an alkenyl, a four-membered cycloalkyl, or a dithiocyclopentyl group. R can open double bonds or open rings to form polymers. Furthermore, the thiol group after ring opening of the dithiocyclopentyl group and the carbonyl group in the structure can form coordination bonds with divalent tin ions in tin-based perovskite solar cells, thereby regulating the crystallization rate of perovskite and reducing the lattice stress of perovskite. At the same time, the fullerene derivatives have good solubility, reducing the lattice stress generated by rapid crystallization of the perovskite active layer, and further improving the stability of tin-based perovskite solar cells.

The invention discloses an NCS-doped manganese-based organic-inorganic hybrid metal halide luminescent material and a preparation method thereof, and belongs to the field of photoelectric materials. The chemical formula of the manganese-based organic-inorganic hybrid metal halide is (C12H28N) 2MnBr4: NCS-, and the manganese-based organic-inorganic hybrid metal halide can emit broadband bright yellow light with the central wavelength of 552 nm under the excitation of ultraviolet light. In addition, the preparation method of the luminescent material is simple and easy to operate, raw materials are cheap and easy to obtain, and the luminescent material is suitable for large-scale production. The luminescent material can be used in the fields of solid-state illumination, display and the like.

The invention relates to the field of photoelectric detection, and discloses a photoelectric detector based on a grating structure and a photoelectric detection method.The photoelectric detector comprises a substrate layer and a photoelectric material layer, and the photoelectric material layer comprises a metal grating structure, a first electrode, a second electrode, a first photoelectric confinement material and a second photoelectric confinement material; the metal grating structure comprises a first metal grating and a second metal grating, the first photoelectric confinement material and the second photoelectric confinement material are connected, and a depletion junction region is formed at an interface; the first metal grating and the second metal grating are symmetrically arranged on two sides of the depletion junction region and are used for exciting a plasmon mode to form a local light field; the first electrode is connected with the first photoelectric confinement material, the second electrode is connected with the second photoelectric confinement material, and the first electrode and the second electrode are used for extracting photon-generated carriers. According to the technical scheme provided by the invention, the separation efficiency of photon-generated carriers and the response performance of the photoelectric detector can be improved.

The invention relates to the technical field of organic photoelectric materials and photovoltaic devices, in particular to a fluorine-substituted benzimidazolyl aniline compound and a synthesis method and application thereof. The structural general formula of the compounds is as shown in a formula I in the specification. The compound is introduced into a perovskite precursor solution as an additive and is used for preparing a perovskite thin film and a trans-perovskite solar cell. According to the compound provided by the invention, synergistic passivation of multi-site defects such as uncoordinated Pb < 2 + > and iodine vacancies is realized through aniline amino and benzimidazole ring N atoms in molecules, and non-radiative recombination is remarkably reduced; the strong electronegativity of fluorine atoms can enhance the electrostatic interaction between molecules and a perovskite Pb-I skeleton, meanwhile, a large conjugated system promotes pi-pi accumulation, and experimental results show that the photoelectric conversion efficiency of a champion device based on the additive can reach 23.3%; .

The present application belongs to the technical field of inorganic chemical industry, and particularly relates to a method for preparing manganese vanadate from vanadium pentoxide. The method for preparing manganese vanadate from vanadium pentoxide is original, and the method for preparing manganese vanadate by roasting vanadium pentoxide in an inert gas atmosphere is used. Vanadium pentoxide powder is mixed with manganese carbonate (or manganese oxide) reagent to obtain manganese vanadate. As one of ternary vanadates, manganese vanadate has good electrochemical performance and optical performance, and can be applied in batteries and photoelectric materials. The method has great significance for the study of vanadium slag leaching mechanism and the development of subsequent products.

The invention belongs to the field of organic photoelectric materials, and relates to a cyanoindanone-modified boron-aza polycyclic aromatic hydrocarbon, and a preparation method and application thereof, and the cyanoindanone-modified boron-aza polycyclic aromatic hydrocarbon has a structure as shown in a general formula I and a general formula II. The cyanoindanone-modified boron-nitrogen heterocyclic polycyclic aromatic hydrocarbon provided by the invention shows the properties of wide spectrum and strong absorption, and meanwhile, the boron-nitrogen compound has a red-shifted absorption edge which can reach 815 nm at most.

This application discloses a negative curvature polycyclic aromatic hydrocarbon containing an eight-membered ring, its synthesis method, and its application, belonging to the field of organic synthesis. The synthesis method uses a haloacenaphthene derivative as a starting material. First, a tetrahalogenated key intermediate containing an eight-membered ring is constructed via a titanium tetrachloride-catalyzed cyclization tetramerization reaction. Subsequently, this intermediate undergoes a cyclization coupling reaction with an alkyne compound in the presence of a palladium catalyst, silver salt, and phosphine ligand to generate a negative curvature polycyclic aromatic hydrocarbon containing an eight-membered ring. The synthesis method of this application avoids multi-step precursor synthesis, resulting in a concise process. It allows for the flexible introduction of functional groups such as trifluoromethyl and silyl groups, improving the solubility and processability of the material. The obtained product exhibits a non-planar configuration, a narrow optical band gap, and excellent electron transport properties, making it suitable for applications... n Applications include semiconductors, chiral optoelectronic materials, and nano-carbon materials.

The present application relates to the technical field of organic photoelectric material, in particular to a kind of arylamine compound and organic electroluminescent device thereof.The arylamine compound provided by the present application has good spatial configuration, excellent arrangement between molecules, excellent hole transport capacity, good film stability, proper HOMO and T1 value, good matching with adjacent organic functional layer, high glass transition temperature, excellent thermal stability and chemical stability, as light-emitting auxiliary layer, can transport hole well, also can block exciton from light-emitting layer to hole transport region, avoid interface luminescence, effectively improve the luminous efficiency of OLED device, prolong the service life of device;It also has higher refractive index, can be applied to OLED device as cover layer material, enhance the light transmittance of device, while resistant to high temperature, can also effectively isolate water vapor, oxygen and corrosive gas, thereby delaying the aging of device, further improve the luminous efficiency and service life of device.

This invention relates to an IL5 / Bi2MoO6 / MXene photoactive composite material, a low-background photoelectrochemical aptamer sensor, its preparation method, and its applications. The sensor is constructed by sequentially modifying chitosan, glutaraldehyde, complementary DNA strands, and a gold nanoparticle-labeled aptamer. A fixed capture probe and APT-Au synergistically achieve dual signal quenching, constructing an extremely low detection baseline. When the target analyte MUC1 is present, its specific binding to the aptamer causes APT-Au to detach, dissolving the dual quenching and significantly restoring the photocurrent, thereby achieving quantitative detection. This invention solves the problems of low efficiency, heterojunction instability, and high baseline in single quenching modes of existing photoelectric materials, achieving highly sensitive, highly specific, rapid, and low-cost detection of the breast cancer biomarker MUC1 in human serum samples, providing a novel, industrially feasible technical solution for large-scale early screening of breast cancer.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic light-emitting device and a lighting or display device comprising the organic light-emitting device. In the invention, the boron-nitrogen compound with triphenylsilyl matched with carbazole and alkyl is used as a light-emitting doping material, and a defined triarylamine compound is used as a light-emitting auxiliary material, so that the light-emitting efficiency of the organic light-emitting device can be effectively improved, and the organic light-emitting device has a very good application prospect.

The invention discloses an organic small molecular luminescent material based on a thiothiazolyl benzophenone derivative as well as preparation and application of the organic small molecular luminescent material. Thio-thiazolyl benzophenone is used as an acceptor core unit, and the molecular weight, charge transfer degree, light-emitting wavelength and other material characteristics of the material can be effectively adjusted by changing the conjugate length of the acceptor core unit and the type and size of a connecting unit. The bipolar photoelectric material connected with the donor and the acceptor can form a large torsion angle between the donor and the acceptor, so that the non-planarity of the structure is improved, the accumulation degree of the material is reduced, aggregation quenching of the material is effectively inhibited, and the problem that carriers of the unipolar organic photoelectric material are unbalanced is solved; meanwhile, the conjugate length of molecules can be effectively controlled, and the horizontal molecular orientation is improved, so that the device structure is simplified, and the device performance is improved.

The present invention belongs to the field of organic photoelectric materials. Disclosed are an organic electroluminescent material, a preparation method therefor, and use thereof. The structure of the organic electroluminescent material is as shown in formula I. The compound provided by the present invention can be used as a doping material for a luminescent layer. By selecting a specific ligand compound and substituting with a specific substituent at the 3-position of dibenzothiophene, the spatial configuration and three-dimensional structure between molecules can be changed, resulting in a designed molecular orientation. The present invention features superior device performance of higher turn-on voltage and low driving voltage, and it mitigates the crosstalk between sub-pixels and endows OLED devices with the advantages of long service life, high efficiency, and low driving voltage.

The application belongs to the technical field of photoelectric materials, and relates to a star-shaped self-assembled hole transport layer material, a preparation method and application thereof. The star-shaped self-assembled hole transport layer material comprises a star-shaped organic compound with a structure shown in general formula (1). The star-shaped organic compound takes an aromatic three-site group as a core, adopts a star-shaped bridging unit, and connects three benzo carbazole phosphate units. The star-shaped organic compound as a hole transport layer material of a photoelectric functional device is beneficial to the improvement of device efficiency and stability, and provides a reliable foundation for the industrialization development of perovskite solar cells and organic solar cells.

The application belongs to the field of organic photoelectric materials, and particularly relates to a kind of diary aromatic formyl tetrahalogen benzene compound and preparation method and application.The diary aromatic formyl tetrahalogen benzene compound is tetrahalogen benzene dimethyl acid, which is synthesized by acyl chlorination and Friedel-Crafts acylation, and the novel compound can effectively separate photo-generated charges, promote efficient transmission of excited state electrons or hydrogen, improve photo quantum efficiency and catalytic efficiency, and can be applied to the fields of luminescent materials, photocatalysis, photocuring, fluorescent probes and the like as photosensitive material, photoelectric material, fluorescent probe and the like, for example, applied to photocatalytic carbon-hydrogen bond activation reaction, and has wide market application prospect.Meanwhile, the preparation method provided by the application is simple in operation, mild in condition, simple in reagent and substrate, economical and inexpensive, easy to obtain, efficient in reaction, wide in substrate applicability, and has wide industrial application prospect.

The invention discloses a gold-silver alloy nanoparticle interface modified copper-zinc-tin-sulfur-selenium film, a preparation method thereof and a solar cell, and belongs to the technical field of photoelectric material new energy. Gold-silver alloy nanoparticles are uniformly distributed on the surface of the copper-zinc-tin-sulfur-selenium film. According to the invention, interface modification is carried out on the CZTSSe film by using the gold-silver alloy nanoparticles, so that the light absorption performance, Raman scattering performance and the like of the CZTSSe film are effectively improved, and then the performance of collection efficiency, open-circuit voltage, short-circuit current density, filling factors and the like of the solar cell is improved by applying the interface-modified CZTSSe to the solar cell. Therefore, the solar cell has more excellent use performance.