806 results about "Optoelectronic materials" patented technology

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an electron transport material, an OLED with the electron transport material and an organic light-emitting device with the electron transport material. According to the electron transport material disclosed by the invention, triazinyl is taken as a framework, phenyl and cyano-substituted biphenyl is taken as a specific substituent group, methyl, adamantyl, phenyl and pyridyl are limited to be matched, and the electron transport material is used as a material for forming an electron transport layer to manufacture an organic electroluminescent device, so that the evaporation process of the device can be smoothly carried out; and the light-emitting efficiency of the organic light-emitting device is 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 an organic small molecule compound, an OLED with the compound and an organic light-emitting device with the compound. According to the organic small molecule compound, the dibenzoheterocycle on the triarylamine compound is substituted and matched, and the organic small molecule compound is used as a material for forming a light-emitting auxiliary layer to manufacture an organic EL element, so that the evaporation process of the device can be smoothly carried out, the light-emitting efficiency of the organic light-emitting device is effectively improved, and the organic small molecule compound has a very good application prospect.

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 relates to a high-efficiency near-ultraviolet heat exciton compound with circular polarization property and application of the high-efficiency near-ultraviolet heat exciton compound in preparation of a circular polarization organic electroluminescent device, and belongs to the technical field of organic photoelectric materials. The organic electroluminescent material is a high-efficiency near-ultraviolet heat exciton compound with circular polarization property, nine pairs of near-ultraviolet enantiomers are successfully designed and synthesized by combining chiral group binaphthol with fluorene with high luminous efficiency, and the nine pairs of near-ultraviolet enantiomers all show obvious circular polarization luminous property and high fluorescence quantum yield. The electroluminescent devices prepared based on the nine pairs of near ultraviolet enantiomers all show near ultraviolet emission, and the external quantum efficiency is 3.9%, 3.1%, 4.5%, 7.5%, 6.3%, 5.0%, 10.3%, 9.2% and 11.6% respectively. A new visual angle is provided for developing a near ultraviolet heat exciton material with circular polarization luminescence and high efficiency at the same time, and 3D and wide color gamut display can be directly achieved in the future.

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 belongs to the field of organic photoelectric materials, and discloses an organic metal compound and an organic electroluminescent device containing the same. The structure of the organic metal compound is as shown in a formula I: # imgabs0 #. The organic metal compound provided by the invention is used as a material in a light-emitting layer, so that the driving voltage of a device can be reduced, the service life of the device can be prolonged, and the stability is good.

The invention discloses a high-color-purity near ultraviolet heat exciton compound with circular polarization property and application thereof in preparation of a circular polarization organic electroluminescent device, and belongs to the technical field of organic photoelectric materials. The electroluminescent material disclosed by the invention is a high-color-purity near ultraviolet heat exciton compound with circular polarization property, and two pairs of near ultraviolet enantiomers are successfully designed and synthesized by combining a chiral group binaphthol, a weak donor dibenzothiophene, dibenzofuran and an acceptor cyanophenyl; the compounds show obvious circular polarization luminescence property and high fluorescence quantum yield. The electroluminescent devices prepared based on the enantiomers all show near ultraviolet emission, CIE coordinates are respectively (0.168, 0.040) and (0.166, 0.040), and the external quantum efficiencies are respectively 4.3% and 3.4%. According to the near ultraviolet heat exciton material, a new visual angle is provided for developing the near ultraviolet heat exciton material with circular polarization luminescence and high color purity at the same time, and 3D and wide color gamut display can be directly achieved in the future.

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 discloses a phosphorescent host material, a preparation method and an organic electroluminescent device.The phosphorescent host material compound is subjected to carbazolyl and triazine group substitution at the first position and the second position of a dibenzoheterocycle, and a phenyl mother nucleus structure is introduced to the substituted same-side aromatic ring of the dibenzoheterocycle, so that the phosphorescent host material is obtained. Structural molecules conforming to the general formula (1) or the general formula (2) are low in symmetry, relatively high in structural rigidity and large in steric hindrance, so that the triplet state energy can be improved, the phenomenon of energy return can be avoided, and meanwhile, the energy loss in the molecules can be reduced, so that the overall performance of the device is more excellent; in addition, the structure conforming to the general formula is more beneficial to charge transfer, so that the driving voltage is reduced, and the luminous efficiency is enhanced.

The invention belongs to the field of optoelectronic materials, and provides a dielectric / metal / dielectric multilayer transparent electrode material which sequentially comprises a substrate, a dielectric layer 2, a metal layer and a dielectric layer 1, the material of the dielectric layer 2 comprises metal oxide doped zinc oxide a; the material of the dielectric layer 1 comprises metal oxide doped zinc oxide b; furthermore, the metal oxide doped zinc oxide a and the metal oxide doped zinc oxide b are respectively and independently selected from one or more of aluminum oxide doped zinc oxide and tin oxide doped zinc oxide. Correspondingly, the invention also provides a preparation method of the dielectric / metal / dielectric multilayer transparent electrode material. Compared with a conventional dielectric / metal / dielectric multilayer transparent electrode material, the dielectric / metal / dielectric multilayer transparent electrode material disclosed by the invention is obviously more stable in photoelectric property, and the sheet resistance stability of the dielectric / metal / dielectric multilayer transparent electrode material is obviously improved especially in a high-temperature and high-humidity environment.

The invention provides an organic metal compound and an organic light-emitting device comprising the same, and belongs to the field of organic photoelectric materials, the organic metal compound has a structure shown in a general formula I. The organic metal compound has a structure shown in a general formula I by changing the combination of substituent groups on 2-(dibenzo [b, d] furan-4-yl) pyridine, and the organic light-emitting device with the organic metal compound can be obtained by synthesizing 2-(dibenzo [b, d] furan-4-yl) pyridine. The organic metal compound is generated by adding-CN,-F, branched alkyl, substituted or non-substituted aryl and substituted or non-substituted naphthenic base, intermolecular spatial configuration is improved, the organic metal compound has good space twisting capability, carrier migration is avoided, and after the organic metal compound serves as a specific doping material of a luminescent layer and is applied to an organic electroluminescent device, the organic electroluminescent device has high luminous efficiency. The driving voltage of the device is reduced, so that carrier migration is avoided, the driving voltage is obviously reduced, the luminous efficiency is obviously improved, and the service life is obviously prolonged.

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 discloses an organic metal iridium complex light-emitting material and an organic electroluminescent device.According to the organic metal iridium complex light-emitting material, after triphenylsilyl is connected into a ligand of Lb, due to the fact that the triphenylsilyl has the large steric hindrance effect and the hyperconjugation effect, the light-emitting effect of the organic metal iridium complex light-emitting material is improved; therefore, the electron distribution can be regulated and controlled, the excited state can be stabilized, the stability of the material is enhanced, and the properties of high luminous efficiency and long service life are obtained. Meanwhile, by introducing other substituents into La and Lb ligands, the wavelength and electron distribution of the organic metal iridium complex material are further adjusted, so that the driving voltage of the organic electroluminescent device prepared when the organic metal iridium complex is used as a luminescent layer doping material is obviously reduced, the luminous efficiency is obviously improved, and the service life is obviously prolonged.

Provided are a heterocyclic derivative and an organic electroluminescent device thereof, which relates to the field of organic photoelectric materials. The heterocyclic derivative of Formula I has high electron mobility and great hole blocking performance, and thus the organic electroluminescent device prepared by using the heterocyclic derivative as the electron transport region material, especially the hole blocking material, has low drive voltage and high luminous efficiency. The organic electroluminescent device can also include a hole transport region, and the hole transport region, especially the emissive auxiliary layer, contains the triarylamine compound of Formula II. Since the electron transport region and the hole transport region of the device can effectively balance carriers, which reduces the quenching of excitons and improves the recombination probability of carriers, the device shows low drive voltage and high luminous efficiency.

The invention relates to the technical field of photoelectric materials, in particular to a perovskite material and a preparation method thereof, a perovskite device and a photovoltaic module. The perovskite material has a three-dimensional structure, the chemical general formula of the perovskite material is ABX3, A is an A-site cation, B is a B-site cation, and X is an X-site anion; wherein the A-site cations comprise at least five different types of cations, one type of A-site cations is formamidine cations, and the other types of A-site cations comprise a first type of A-site cations with the ion radius smaller than that of the formamidine cations and a second type of A-site cations with the ion radius larger than that of the formamidine cations; in the A-site cations, the atomic percentage of the first type of A-site cations is greater than the atomic percentage of the second type of A-site cations, and in the A-site cations, the atomic percentage of the formamidine cations is 50%-90%.

The invention provides a hole transport layer, a preparation method and application thereof, and a perovskite solar cell, and belongs to the technical field of photoelectric materials and devices. The preparation method of the hole transport layer comprises the following steps: (1) preparing an initial self-assembled monomolecular layer by adopting a self-assembled monomolecular solution; (2) performing organic solvent steam treatment on the initial self-assembled monomolecular layer to prepare a self-assembled monomolecular layer; the self-assembled monomolecules are insoluble or insoluble in the organic solvent; the polarity of the organic solvent is similar to that of the tail group of the self-assembled monomolecule. The organic solvent steam which is insoluble or insoluble in self-assembled monomolecules and has the polarity similar to that of the tail groups of the self-assembled monomolecules is adopted, ordered arrangement of the self-assembled monomolecules is promoted, free rotation and orientation adjustment of the molecules along the surface of the substrate are promoted by utilizing the swelling effect of the organic solvent steam, and the self-assembled monomolecules are uniformly distributed. The defect density of the hole transport layer is reduced, and the photoelectric conversion efficiency of the perovskite solar cell is improved.

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 discloses a flexible PDLC (Polymer Dispersed Liquid Crystal) dimming film based on dichroic dye as well as a preparation method and application thereof, and belongs to the technical field of photoelectric materials. The problems that the current PDLC dimming film preparation process is not environment-friendly, the operation is complicated, the flexibility is poor and the like are solved. The preparation method of the flexible PDLC dimming film comprises the following steps: (1) mixing an ultraviolet curing adhesive, a nematic phase mixed crystal, a rigid spacer and a dichroic dye to obtain a mixture; (2) substrate treatment; and (3) filling the mixture between two flexible substrates, and curing with ultraviolet light. Volatile resin and ester plasticizers in a traditional formula are replaced with the ultraviolet curing adhesive, toxic and harmful substances are prevented from being used, the preparation process is environmentally friendly and safe, meanwhile, the conductive flexible substrate is combined with the ultraviolet curing adhesive, the limitation of a rigid substrate is broken through by means of high toughness of the ultraviolet curing adhesive, and the conductivity of the conductive flexible substrate is improved. By introducing the dichroic dye, the off-state transmittance is reduced, the contrast ratio is improved, and the long-term stability of the PDLC dimming film is enhanced.

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 discloses a high-performance transparent conductive film and a preparation method and application thereof, and relates to the technical field of photoelectric materials. The preparation method of the high-performance transparent conductive film comprises the following steps: introducing mixed gas of Ar and O2 into a vacuum cavity, and depositing a first TCO layer on a substrate; pure Ar gas is introduced into the vacuum cavity, and a metal layer is deposited on the first TCO layer; pure Ar gas is introduced into the vacuum cavity, and a second TCO layer is deposited on the metal layer; after deposition is finished, the sample is subjected to first-time annealing treatment at the first preset temperature in the aerobic atmosphere, then the sample is subjected to second-time annealing treatment at the second preset temperature in the vacuum or inert gas atmosphere, and the first preset temperature is lower than the second preset temperature. According to the technical scheme, the overall performance of the transparent conductive film is improved, and the transparent conductive film has great application potential in the field of transparent low-power-consumption electronic devices.

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 tensile testing device suitable for a photoelectric material, and belongs to the technical field of material testing, the tensile testing device comprises a supporting substrate, a mounting frame is arranged on the supporting substrate, a driving cylinder is arranged at the top of the mounting frame, and the power output end of the driving cylinder penetrates through and extends into the mounting frame to be fixedly connected with a tension detector; a first fastening assembly and a second fastening assembly are correspondingly arranged at the lower end of the tension detector and on the supporting base plate; a controller is arranged on one side of the mounting frame; the first fastening assembly and the second fastening assembly clamp the two ends of the photoelectric material respectively and guide the photoelectric material to do linear stretching motion under the action of the driving cylinder, and the tension value is displayed through the controller. The two clamping blocks are matched with the trapezoidal cavity of the mounting block, in the process that the electric push rod drives the clamping blocks to move along the guide mechanism through the push plate, accurate clamping or loose clamping of a sample is achieved, the clamping force is uniform and stable, and sample deviation can be effectively avoided; and compared with a spring clamping mode, the clamping effect is more stable.

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.