629 results about "Optoelectronic materials" patented technology

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 large-steric-hindrance double-spiro group. 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 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 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 invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic light-emitting device and a display or lighting device comprising the organic light-emitting device. A hole transport layer compound of the device is obtained by taking a phenyl and alkyl fixed substituted fluorenyl structure as a core fragment and taking a benzo five-membered ring and a limited substituted benzene ring as two side chains of amido, and is matched with a limiting material of a light-emitting auxiliary layer to manufacture an OLED (Organic Light Emitting Diode) element; the light-emitting efficiency and the working life of the organic light-emitting device are effectively improved, and the application prospect is very good.

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 photoelectric materials, and relates to a nitrogen-containing heterocyclic compound and an organic electroluminescent element containing the nitrogen-containing heterocyclic compound. The compound has a structure represented by formula (1): wherein L is selected from a single bond, a substituted or unsubstituted C6-C60 arylene group, and a substituted or unsubstituted C3-C60 heteroarylene group, o is an integer from 1 to 3, and when o is 2 or greater, L are the same as or different from each other. The organic electroluminescent element prepared from the compound has higher current efficiency and longer service life, and can be used as an N-type charge generation layer material for preparing the organic electroluminescent element.

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 provides chlorine-doped nickel oxide, a preparation method and application thereof and a photoelectric device, and relates to the field of photoelectric materials.The preparation method of the chlorine-doped nickel oxide comprises the following steps that S10, an aqueous solution of nickel salt and chlorine salt is obtained, an alkaline solution is dropwise added, centrifugation is conducted, and a coprecipitate is obtained; s20, washing, drying and roasting the coprecipitate to obtain chlorine-doped nickel oxide; wherein the molar ratio of the nickel salt to the chlorine salt is (10-20): (1-4). In the technical scheme provided by the invention, the nickel salt and the chlorine salt are co-precipitated to generate a co-precipitate of nickel hydroxide and chloride, and then the co-precipitate is washed, dried and roasted to prepare the chlorine-doped nickel oxide, so that the hole mobility of the chlorine-doped nickel oxide is improved; the alkaline solution is dropwise added for coprecipitation, so that the particle size of the coprecipitate can be reduced, and the nanoscale chlorine-doped nickel oxide is prepared, so that the dispersity of the chlorine-doped nickel oxide in a mobile phase is improved, and the chlorine-doped nickel oxide can be applied to preparation of a hole transport film and improvement of the uniformity of the hole transport film.

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 discloses an iron-doped lithium niobate material as well as a preparation method and application thereof, and belongs to the technical field of photoelectric materials. The preparation method of the material comprises the following steps: (1) mixing and grinding 10-100 mg of an iron salt precursor, 200-300 mg of lithium niobate and 500 mg of molten salt to obtain mixture powder; (2) calcining the mixture powder for 0.5-5 hours at the temperature of 350-800 DEG C; and (3) cooling the calcined mixture powder in air, and washing to remove the molten salt to obtain the iron-doped lithium niobate material. The iron-doped lithium niobate material prepared by the preparation method has a relatively stable structure, the light absorption capability is remarkably enhanced, and the application of the iron-doped lithium niobate material in the optical field is facilitated.

The invention belongs to the technical field of organic photoelectric materials, and provides a phosphorescent host material, a preparation method and an organic electroluminescent device containing the phosphorescent host material. The structural general formula of the phosphorescent host material is shown in the specification. When the phosphorescent host material provided by the invention is applied to a luminescent device, the characteristics of low driving voltage, high luminous efficiency and long service life are shown, and the comprehensive performance of the obtained green organic electroluminescent device is more excellent.

The invention discloses a light-emitting auxiliary material, a preparation method thereof and an organic electroluminescent device, and relates to the technical field of organic photoelectric materials. According to the light-emitting auxiliary material disclosed by the invention, on the basis of a 9-phenylfluorene derivative group, triarylamine is connected to phenyl, and meanwhile, deuterium-substituted aromatic rings are connected to the triarylamine, so that the energy level can be effectively reduced, carrier migration localization can be avoided, and a hole transport energy barrier can be reduced, thereby increasing the migration rate and improving the light-emitting efficiency; triarylamine has excellent hole transport performance, a triarylamine material is used as a light-emitting auxiliary layer, a group with a high triplet state energy level is introduced, the energy range between energy levels can be reduced, and the service life of the device is greatly prolonged.

The invention discloses a hydrogenated cycloolefin copolymer, a hydrogenated cycloolefin resin composition and a preparation method thereof. Under the condition that the monomer composition and molecular weight of the hydrogenated cycloolefin copolymer are certain, the hydrogenated cycloolefin copolymer with more excellent performance can be obtained by controlling the hydrogenation reaction conditions of the hydrogenated cycloolefin copolymer. The hydrogenated cycloolefin resin composition provided by the invention not only has the characteristics of high refractive index, low haze and aging and yellowing resistance, but also obviously improves the separation efficiency of a catalyst, has excellent processability, and has outstanding application prospects in the fields of medical packaging materials, high-end photoelectric materials and the like.

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 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 boron-containing spiro 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 discloses a fluorine atom modified (benzene-thiophene) derivative conjugated polymer, and relates to an organic photoelectric material. A thiophene derivative monomer 1 is prepared through a coupling reaction, then the thiophene derivative monomer 1 and a fluorine-atom-modified (benzene-thiophene) derivative monomer 2 are subjected to electrochemical copolymerization, the fluorine-atom-modified (benzene-thiophene) derivative conjugated polymer is obtained, the transmittance, coloring efficiency, response time and other properties of the polymer are optimized, and the photoelectric conversion efficiency of the polymer is improved. The preparation method has important guiding significance on electrochromic application of the polymer. The invention discloses a preparation method of a fluorine atom modified (benzene-thiophene) derivative conjugated polymer, the polymer material is prepared by an electrochemical method, the structural formula of the polymer material is shown in the specification, and n is a natural number of 1-10000. According to the series of conjugated polymers, the content of fluorine atoms is adjusted, so that the optical contrast and coloring efficiency of electrochromism are improved, and the conjugated polymers are novel electrochromism functional layer materials.

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 discloses a purification method of high-purity tellurium, and belongs to the technical field of non-ferrous metallurgy. The method sequentially comprises the steps of raw material ultrasonic mechanical activation, ultrasonic selective recrystallization, smelting reduction refining, vacuum rectification purification and tellurium ingot forming, and volatile impurities such as selenium and sulfur are effectively removed by oxidizing calcination of a crude tellurium raw material; then, primary separation of impurities is realized in a manner of combining alkaline dissolution and oxidation precipitation, and then repeated purification is performed through low-temperature crystallization, so that the purity of tellurium is remarkably improved; metal impurities are further removed through smelting reduction treatment under the inert atmosphere, and preliminarily purified tellurium ingots are formed; step distillation separation is carried out by utilizing vapor pressure difference between tellurium and impurities under a high vacuum condition, and a pure tellurium component is enriched; and finally, melting in an inert atmosphere, cooling and forming to obtain the high-purity tellurium ingot. The method is stable in technological process, suitable for industrial application and capable of meeting the requirements of high-end fields such as semiconductors and photoelectric materials for high-purity tellurium materials.

The invention discloses a method for testing the collision force of a bearing retainer, and belongs to the technical field of dynamic non-contact force measurement. The testing method comprises the steps that a piezoelectric material layer is arranged on the inner wall of a pocket of the bearing retainer, a photoelectric material layer is arranged on the end face of the bearing retainer, and the piezoelectric material layer is connected with the photoelectric material layer through a wire; acquiring the light intensity of the photoelectric material corresponding to different collision forces, and establishing a calibration curve of the corresponding relationship between the light intensity and the force; when the collision force of the bearing retainer is tested, in the operation process of a bearing, the illumination condition is kept unchanged, the change of the light intensity emitted by the photoelectric material is monitored in real time, and the collision force corresponding to the light intensity is obtained according to the calibration curve. Therefore, the collision force between the bearing pocket and the steel ball is measured in real time, and the test precision is high.

The invention discloses a photoelectric material traceability management method and system based on big data, particularly relates to the technical field of photoelectric material production full-process management, and is used for solving the problem of material performance discretization caused by the fact that a fixed physical unit cannot respond to a technological parameter coupling effect in an existing batch management method. The method comprises the following steps: identifying a key coupling process parameter combination causing performance discretization by acquiring a process parameter combination of process nodes of a whole process and a material performance detection result; determining a reference allowable fluctuation range threshold according to downstream specification requirements, and cooperatively adjusting the threshold in combination with a failure conduction factor generated by historical failure data and a time-varying risk factor of a real-time parameter sequence to obtain a dynamic allowable fluctuation range threshold; disassembling the subunits with the super-dynamic threshold values and recombining the subunits with cross-batch subunits in the same parameter fluctuation interval; and verifying parameter cooperation stability in a recombination batch, realizing transformation of a material unit from a fixed physical boundary to a dynamic performance boundary, and accurately matching downstream specification requirements.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an arylamine compound, an organic electroluminescent device and a display or lighting device. According to the arylamine compound, amido serves as a mother nucleus, a limited and substituted fluorenyl structure serves as a core fragment, a benzo five-membered ring and a limited and substituted benzene ring serve as amido, and the other two side chains are combined, so that the compound can keep high stability. Meanwhile, when the compound is used for manufacturing OLED elements, the light-emitting efficiency of organic light-emitting devices is effectively improved, the working life of the organic light-emitting devices is effectively prolonged, and good application prospects are achieved.

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.

This invention relates to the field of optoelectronic materials and devices, and in particular to a method for preparing a cerium-doped tin oxide electron transport layer and its application in perovskite solar cells. The method involves depositing a cerium-doped tin oxide electron transport layer using a chemical bath under isothermal conditions, followed by annealing. Based on this transport layer, an organic-inorganic hybrid upright perovskite solar cell with high efficiency and UV resistance is fabricated. The cerium-doped tin oxide electron transport layer disclosed in this invention successfully incorporates cerium ions into the tin oxide lattice, solving not only the problems of excessive oxygen vacancies on the tin oxide surface and excessive defects at the perovskite interface, but also giving the electron transport layer excellent UV resistance.

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 application relates to the fields of semiconductor light sources and organic photoelectric materials, and particularly relates to a coaxial flexible OLED light-emitting wire and a hole injection material. The hole injection material introduces a phosphoric acid group and a conjugated main chain structure in a dithienothiazine (DITTz) molecular skeleton, maintains excellent charge delocalization and low oxidation potential characteristics of the DITTz, forms a stable interaction with an ITO anode surface through the phosphoric acid group, significantly reduces a hole injection barrier, and improves interface combination. Compared with existing PEDOT:PSS or a carbazole-based phosphoric acid group polymer, the hole injection material has obvious advantages in aspects of a reduced starting voltage, improved light-emitting efficiency, enhanced interface stability, and device bending durability and hygrothermal stability.

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.