1028 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 with a polynary fused ring, an OLED (Organic Light Emitting Diode) with the compound and an organic light-emitting device with the compound. According to the boron-nitrogen compound disclosed by the invention, through matching of a fused heterocyclic structure and limited groups such as tertiary butyl and naphthenic base, the thermal stability of the compound can be improved, and the boron-nitrogen compound has an excellent luminescence characteristic; the boron-nitrogen compound provided by the invention is used as a light-emitting layer material, so that the organic light-emitting device can effectively have 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 spirocyclic group with large steric hindrance. And the energy transmission performance between a subject and an object or a sensitizer can be improved by the large conjugated spiro structure unit. 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 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 organic photoelectric materials, in particular to an acceptor material containing a cyclohexyl side chain, the structural formula of the acceptor material containing the cyclohexyl side chain is one of Y-C1 or Y-C2, and the acceptor material containing the cyclohexyl side chain is # imgabs0. On the basis of a traditional A-D-A structure with a Y series analogue as a core, a large-volume steric hindrance side chain is introduced, and a large-volume cyclohexyl group is introduced into the side chain, so that the acceptor material containing the cyclohexyl side chain is obtained. The organic small molecule acceptor material has the advantages that the steric effect is increased, the intramolecular and intermolecular interaction is adjusted, the polarizability of molecules is enhanced, the intermolecular electron orbital overlapping is promoted, the delocalization of charge transfer pathways is promoted, the energy loss is further reduced, and the efficiency is improved; the material has excellent charge transfer characteristic and good intermolecular accumulation effect, is beneficial to the improvement of charge mobility, and has better photovoltaic performance in the test of a ternary organic solar cell.

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 discloses a multifunctional organic semiconductor material with cyano phosphonic acid as an anchoring group and a preparation method and application of the multifunctional organic semiconductor material. The cyano group in the anchoring group can effectively increase the deprotonation capability of phosphonic acid and enhance the hydrophilicity of the anchoring group, so that the material has unique amphiphilic characteristics and shows good wettability, and further, the high-quality perovskite thin film is obtained. Meanwhile, F atoms in the arylamine enhance the interface interaction between the hole transport layer and the perovskite layer, thereby further regulating the crystallization of the perovskite, passivating the bottom interface defect of the perovskite, and inhibiting the non-radiative recombination of the interface. The organic semiconductor material is highly conjugated in molecules and good in photo-thermal stability. When the hole transport layer is applied to a trans-perovskite solar cell, the photoelectric conversion efficiency of more than 24.5% can be obtained, and the hole transport layer shows a good industrial application prospect.

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 processing methods of optoelectronic materials, and mainly relates to a grinding and polishing process of a magnetic thin film epitaxial substrate material-calcium magnesium zirconium doped gadolinium gallium garnet (Ca, Mg, Zr: GGG, hereinafter abbreviated as SGGG) single crystal substrate. Comprising the key steps of disc loading, thinning and leveling, mechanical grinding and polishing, chemical mechanical polishing (CMP) and the like, as shown in figure 1. The invention also relates to a special binder, a grinding liquid and a polishing liquid in the SGGG substrate processing process, and the ultra-smooth (the roughness is less than or equal to 0.5 nm) and ultra-flat (the flatness is less than or equal to 5 [mu] m) SGGG single crystal substrate can be obtained through the technological process, the corresponding grinding liquid and the corresponding chemical polishing liquid, so that the epitaxial growth requirement of a YIG or RIG magnetic film is met.

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 belongs to the technical field of photoelectric materials, and provides a nitrogen-containing heterocyclic compound and an organic electroluminescent element containing the nitrogen-containing heterocyclic compound. A nitrogen-containing heterocyclic compound having a structure # imgabs0 # represented by formula (1), in which X is selected from O or S, R1-R16 are each independently selected from hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C2-C10 alkenyl, substituted or unsubstituted C6-C30 aryl, and substituted or unsubstituted C3-C30 heteroaryl, and in the formula (1), R1-R16 are each independently selected from hydrogen, deuterium, halogen, cyano, substituted or unsubstituted C1-C10 alkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C3-C10 cycloalkyl, substituted or unsubstituted C6-C30 aryl, or substituted or unsubstituted C6-C30 heteroaryl, r1 to R16 independently exist, or two adjacent R1 to R16 are connected to form a ring. The organic electroluminescent element prepared by using the compound can realize reduced driving voltage and durable service life, and the organic electroluminescent element has better performance.

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 belongs to the technical field of photoelectric materials, and relates to an OLED device containing a polydopamine modified carbon nanotube and a preparation method of the OLED device. The anode electrode layer is formed on the substrate; the organic light-emitting unit is formed on the anode electrode layer, the organic light-emitting unit sequentially comprises a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer and an electron injection layer from bottom to top, and the light-emitting layer is made of a composite material containing polydopamine modified carbon nanotubes; and the cathode electrode layer is formed on the organic light-emitting unit. The polydopamine modification is functional modification, and solves the problems of poor dispersibility and interface cohesiveness of the traditional carbon nanotubes in the OLED device, thereby improving the photoelectric properties of the OLED device.

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 organic photoelectric materials and devices, and discloses an organic electroluminescent device, a preparation method thereof and a display device. The device sequentially comprises an anode layer, a hole transport layer, a light-emitting layer, a second electron transport layer, a first electron transport layer and a cathode layer, wherein the first electron transport layer is composed of an n-type dopant and a first electron transport material. According to the adopted electron transmission structure, small electron injection barriers are arranged between the second electron transmission layer and the first electron transmission layer and between the second electron transmission layer and the main body material, and the organic light-emitting device prepared through the electron transmission structure achieves good voltage stability in the aging process; therefore, the problem of power consumption increase of the organic light-emitting device in the aging process is solved. And a relatively small electron injection barrier can reduce the driving voltage of the device, so that the organic light-emitting device with low driving voltage, long service life and stable voltage is obtained.

The invention discloses a pyrrotriazine photoelectric material waste liquid treatment device, and relates to the technical field of pyrrotriazine photoelectric material waste liquid treatment.The pyrrotriazine photoelectric material waste liquid treatment device comprises a neutralizing tank and a neutralizer storage cylinder, and the neutralizer storage cylinder is located above the neutralizing tank. According to the present invention, the alkali neutralizer in the neutralizer storage cylinder is continuously and discontinuously added into the neutralization tank, such that the addition amount and the addition speed of the neutralizer can be well controlled so as to avoid the violent or non-uniform reaction caused by the one-time excessive addition of the neutralizer; the alkali neutralizer is added into the neutralization tank in a more dispersed manner, the alkali neutralizer can be more widely distributed in the waste liquid through rotation and swinging of the dispersion disc, the preliminary mixing effect is improved, a probe of the PH detector is inserted into the neutralization tank, and the pH value change of the waste liquid of the pyrrolotriazine photoelectric material in the treatment process can be detected in real time.

The invention relates to the field of photoelectric material and device physics, and discloses a preparation method of a Ga2O3: Sn / HfOx heterojunction photoelectric sensor, and the method comprises the following steps: S1, cleaning a substrate, S2, preparing a Ga2O3: Sn thin film, S3, growing an electrode, S4, preparing an HfOx thin film, and carrying out neural synapse bionic application of the Ga2O3: Sn / HfOx heterojunction photoelectric sensor. Comprising Ga2O3: Sn / HfOx synaptic plasticity research and Ga2O3: Sn / HfOx photoelectric sensor sensing and storage calculation integrated application research. The Ga2O3: Sn thin film is prepared by adopting a sol-gel method with accurate and controllable doping amount, donor doping with controllable concentration is realized by controlling the mass of the added tin sheet, so that the photocurrent and responsivity of the photoelectric sensor are increased, the HfOx thin film is prepared by adopting a magnetron sputtering method, the photoelectric sensor with a double-layer structure is constructed, the detection rate and responsivity of the device are improved, and the photoelectric sensor is suitable for the field of photoelectric sensors. An ultraviolet signal is used to simulate a plurality of synaptic functions, including EPSC, PPF and empirical learning behaviors. Furthermore, a high-linearity light-enhanced electrical suppression behavior is realized, and a basis is provided for realizing a high-precision image recognition function.

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 field of photoelectric materials, and particularly relates to a vacuum vapor deposition perovskite material crystallization method, which is characterized in that vacuum vapor deposition of a perovskite precursor is carried out step by step, and a specific additive containing amide, amino, carboxyl and other functional groups is introduced in the deposition process to realize dynamic regulation and control of perovskite grain growth. According to the method, the perovskite crystallization kinetic process can be regulated and controlled, so that the crystallization of perovskite is optimized, the quality of the film is improved, the defects of the perovskite film are reduced, and the fluorescence quantum yield is improved.

The invention discloses a growth method for controlling the layer number and stacking structure of molybdenum disulfide crystals based on temperature gradient and application of the growth method, and belongs to the technical field of two-dimensional layered materials and photoelectric materials. Molybdenum trioxide powder and sulfur powder are used as precursors, sodium chloride is used as an auxiliary agent, the growth temperature is controlled to be 700-900 DEG C through chemical vapor deposition, and the molybdenum disulfide crystals are obtained. According to the method, accurate control over the layer number and the stacking structure of the molybdenum disulfide crystals is achieved through the temperature gradient, the method has high controllability and repeatability, an efficient technical means is provided for preparation of large-area and high-quality molybdenum disulfide materials, and the method is suitable for industrial production. The technical problem that the number of layers of multi-layer materials and the stacking structure are uncontrollable is solved. The method disclosed by the invention is accurate in control and suitable for preparing the high-performance photoelectric material with a specific layer number and a stacking structure.

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.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an organic compound, an OLED with the compound and an organic light-emitting device with the compound. According to the general formula compound provided by the invention, by utilizing the combination of the diphenyl heterocyclic ring and the substituted continuous three-ortho-position connected benzene, the transmission of charges and the stability of molecules are facilitated, the steric hindrance of the molecules can be increased, and the molecules are prevented from being crystallized at high temperature due to excessive planarization. Due to the structural characteristics in the two aspects, the whole molecule shows good hole injection and migration performance. When the compound provided by the invention is used as a light-emitting auxiliary layer material in the organic electroluminescent device, the efficiency roll-off of the device can be inhibited, and the hole injection and migration efficiency in the device can be effectively improved, so that the device is ensured to obtain an excellent effect of low starting voltage, and the service life of the device is prolonged. The preparation process of the compound is simple and easy to implement, raw materials are easy to obtain, and the compound is suitable for mass production and amplification and has a good industrialization prospect.

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%.