108 results about "Carbazole derivative" patented technology

The invention belongs to the technical field of perovskite solar cells, and provides a dibenzofuranyl carbazole derivative and a preparation method and application thereof.The dibenzofuranyl carbazole derivative takes dibenzofuranyl carbazole as a functional group, molecular ordered accumulation is optimized, and hole mobility is remarkably improved; an alkyl carbon chain is used as a linking group, a phosphate group at the tail end is an anchoring group, perovskite interface defects can be effectively passivated, the energy loss at the interface can be reduced, single molecule self-assembly can be realized, the cell performance can be improved, and as a self-assembly monomolecular layer hole transport material, a perovskite solar cell has relatively high photoelectric conversion efficiency, and the photoelectric conversion efficiency can be improved. The service life is long; and the stability is high.

The invention provides a self-assembled monomolecular layer hole transport material based on a polycarbazole derivative and a preparation method and application thereof, and the self-assembled monomolecular layer hole transport material has a structure as shown in a formula I. The self-assembled monomolecular layer hole transport material is simple in structure, high in hole transport property, strong in interface passivation ability, high in thermal stability, and suitable for large-scale application; a polycarbazole derivative is taken as a mother nucleus, an alkyl / aryl chain is taken as a linking group, phosphoric acid is taken as an anchoring group, and rigid conjugated large-plane polycarbazole with a specific structure is taken as the mother nucleus, so that molecular accumulation can be improved, and the hole transport performance of the material can be improved. By taking a phosphate group as a tail end, single-molecule self-assembly can be realized, a perovskite interface can be passivated, the energy loss at the interface is reduced, and the battery performance 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 embodiment of the invention provides a perovskite cell and a preparation method thereof, a laminated cell and a photovoltaic module. The perovskite cell comprises a substrate, a first hole transport layer, a second hole transport layer, a tunneling layer, a perovskite functional layer, an electron transport layer and an electrode layer which are sequentially arranged in a preset direction, and the first hole transport layer comprises a carbazole derivative with a carboxyl anchoring group. The second hole transport layer comprises a compound of foldable molecules containing phosphonic acid groups, and the tunneling layer is of a network structure. The technical scheme provided by the embodiment of the invention at least has the following advantages: 1, foldable molecules containing phosphonic acid groups cover the gaps of the first hole transport layer after being folded to serve as the second hole transport layer, so that the wettability (contact angle lt: 10 degrees) of the perovskite precursor is improved;

The invention discloses a carbazole derivative as well as a preparation method and application thereof, a pi conjugated system of carbazole is expanded by introducing a thiophene unit, and (4-(3, 6-di (thiophene-3-yl)-9H-carbazole-9-yl) butyl) phosphonic acid (4PAThCz) is designed. Compared with classical 2PACz, the 4PAThCz shows long-range orderliness and compact pi-pi accumulation, and the molecular dipole moment is enhanced. In addition, the distorted molecular structure of 4PAThCz is helpful to improve solubility and inhibit excessive self-aggregation. The characteristics facilitate hole extraction and transmission, inhibit carrier recombination in a photovoltaic device, and facilitate preparation of an efficient and stable solar cell.

The invention relates to the technical field of electroluminescent materials and devices, in particular to an alcohol-soluble host material for a carbon dot electroluminescent device as well as a preparation method and application of the alcohol-soluble host material. The alcohol-soluble host material for the carbon dot electroluminescent device has a structure as shown in a formula I. According to the invention, phosphate ester is introduced into the alcohol-soluble host material as a side chain, so that on one hand, the solubility of the host material in ethanol can be effectively improved, and on the other hand, the film-forming ability of the host material can be effectively improved. Diphenylamine, carbazole and carbazole derivatives are used as donors, triazine is used as an acceptor, and the host material can be endowed with the characteristic of bipolar transmission. Test results show that the alcohol-soluble host material provided by the invention has excellent alcohol solubility and film-forming ability comparable to that of a polymer host material, and also has good hole and electron transport ability, so that carrier transport is effectively balanced, and the luminous efficiency of a host-guest doped electroluminescent device is improved.

This invention relates to a method for synthesizing N-H functionalized carbazole products based on Fe catalysis at room temperature and pressure. The method involves mixing α-aryl-α-diazo ester with carbazole or a carbazole derivative in an organic solvent, adding an Fe catalyst and additives, and reacting at room temperature and pressure to obtain the N-H functionalized carbazole product. This invention uses metallic Fe as a catalyst to react α-aryl-α-diazo ester to generate α-(N-carbazole)-α-aryl ester compounds under nitrogen atmosphere at room temperature and pressure. It also offers a wider range of selectable substrates and, compared to traditional synthesis methods, has many advantages such as high yield, simple conditions, low waste emissions, simple reaction equipment, and ease of industrial production.

The invention discloses the field of organic electronic materials, and particularly discloses a chain terminating molecule for straight-chain polyphosphocarbazole and a polymerization terminating method. The chain termination molecule is a carbazole derivative containing boronic acid pinacol ester, the core structure is'carbazole matrix-linking group-diethyl phosphate group ', and the linking group can be a butyl chain or a benzene ring; after a chain termination molecule is synthesized through a three-step reaction, a Suzuki coupling reaction is utilized to completely replace a residual Br site of straight-chain polyphosphocarbazole, and polymerization termination is realized. The bromine residual quantity of the product is less than or equal to 0.01 wt%, the molecular weight is stabilized at 6-7 monomeric units, and the molecular weight change rate is less than or equal to 5% after the product is dried and stored at 25 DEG C for 6 months; when the material is used as a hole transport layer, the laboratory small-area film thickness deviation is less than or equal to 10%, the corresponding perovskite assembly efficiency is greater than or equal to 23%, the 1000-hour attenuation rate is less than or equal to 15%, the defects of self-agglutination, poor stability and device performance fluctuation of the existing material are solved, the process is simple, and industrialization is easy.

The application discloses a kind of tetrahydrocarbazole derivatives and its photocatalytic synthesis method, belong to organic synthesis technical field, 2-arylene phenyl isonitrile compound, cyclopropyl aniline compound and photocatalyst are added to solvent, after photocatalytic reaction, again separation and purification, obtain tetrahydrocarbazole derivative.This method is more simple compared with the method for using no tetrahydrocarbazole synthesis N-substituted tetrahydrocarbazole derivative, and no additional various additives in reaction, the atomic utilization rate of cyclopropyl aniline compound and 2-arylene phenyl isonitrile compound reaches 100%, reflects atomic economy, raw material is cheap and easy to obtain, reaction cost is low, and environment friendly;It is easy to operate, and target product can be efficiently obtained.The photocatalytic synthesis method of the tetrahydrocarbazole derivative is good in universality of raw material, and raw material is widely sourced, under optimized reaction condition, target product is easy to separate, and has potential application value in material and pharmaceutical field.

This invention discloses an amino compound containing a carbazole derivative and its synthesis method, as well as a perovskite solar cell and its preparation method, belonging to the field of solar cell technology. The general chemical formula of the amino compound of this invention is as follows: Wherein: R1 is a straight-chain alkyl group, with 3 to 4 carbon atoms; R2 is a straight-chain alkyl group, with 3 to 4 carbon atoms. Based on the introduction of long-chain alkyl groups and carbazole groups, both water and oxygen barrier properties and electron transport capabilities can be improved simultaneously, thereby enhancing the stability and photoelectric conversion efficiency of perovskite solar cells and solving the problem of poor stability in existing perovskite systems.

The invention discloses a carbazole derivative embedded with a boron-nitrogen unit, a synthesis method and application. The synthesis method comprises the following steps: respectively carrying out nucleophilic substitution reaction on a raw material 1 or 6 and 4-bromo-1-butene, and separating and purifying to obtain a corresponding intermediate 2 or 7; further adding the intermediate 7, reduced iron powder and ammonium chloride into a solvent for reduction reaction, and quenching, separating and purifying to obtain an intermediate 8; respectively adding the intermediate 2 or 8 and a boronizing reagent into a solvent to carry out electrophilic boronizing reaction, and separating and purifying to obtain a corresponding intermediate 3 or 9; respectively adding the intermediate 3 or 9 and a Grubbs catalyst into a solvent for olefin metathesis reaction, and separating and purifying to obtain a corresponding intermediate 4 or 10; the intermediate 4 or 10, a dehydrogenation reagent and a sacrificial reagent are added into a solvent for an oxidative dehydrogenation reaction, separation and purification are performed to obtain a corresponding compound 5 or 11, and the carbazole derivative embedded with the boron-nitrogen unit has good fluorescence and can be efficiently applied to the fields of OLED and OPD.

Provided herein are crystalline carbazole derivatives, pharmaceutical compositions and methods of treatment thereof.

This invention belongs to the field of organic electroluminescence technology, specifically relating to a luminescent crystal material, its preparation method and application, and laser-prefabricated luminescent devices. The preparation method of the luminescent crystal material includes the following steps: a first reaction is carried out with an amino-containing spirodifluorene monomer, a halogenated nitrogen heterocyclic compound, and a fluorinated organic acid to obtain a first intermediate; the first intermediate undergoes a second reaction with a gallium halide to obtain a second intermediate; a third reaction is carried out with a carbazole derivative, a naphthenic acid derivative, a luminescent bandgap modulating organic compound, and the second intermediate to obtain a third intermediate; the third intermediate is dissolved in an organic solvent for a fourth reaction, followed by multi-directional condensation separation; the material is collected in a pre-designed receiving dish in a 90-110°C condensation zone, and then subjected to a fourth post-processing to obtain the luminescent crystal material. The prepared luminescent crystal material exhibits high quantum efficiency, excellent thermal stability, and achieves balanced red, green, and blue performance.

Disclosed in the present application are a carbazole derivative monomolecular layer, a preparation method thereof, a transistor memory and a fabrication method therefor, relating to the technical fields of organic storage and information. The transistor memory comprises a source / drain electrode, a semiconductor layer, a carbazole derivative monomolecular layer, a gate insulating layer, a substrate and a gate electrode which are sequentially arranged. The present application prepares a carbazole derivative monomolecular layer and applies same to organic field effect transistor memories to act as a charge trapping layer of devices. The present application involves a simple operation process and low cost, shortens preparation periods while reducing the difficulty in fabrication of transistor memories, and improves the storage performance and stability of transistor memories.

To provide a light-emitting element having high emission efficiency and to provide a light-emitting device and an electronic device that have low power consumption and are driven at low voltage, a carbazole derivative represented by General Formula (1) is provided. In the formula, α 1 , α 2 , α 3 , and α 4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar 1 and Ar 2 each represent an aryl group having less than or equal to 13 carbon atoms; R 1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R 2 represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n each independently are 0 or 1.

The invention discloses a carbazole derivative-based inlaid composite carbon wave-absorbing material and a preparation method thereof, and relates to the technical field of electromagnetic wave absorbing materials. The preparation method comprises the following steps: by taking a boric acid-based carbazole derivative as a precursor, carrying out free radical polymerization reaction on the precursor and a cross-linking agent in the presence of PMMA microspheres; the reaction comprises local modification on the surface of the microsphere and copolymerization in a solvent at the same time, and a composite precursor composed of the surface modified microsphere and a copolymer is obtained; and then carrying out pre-oxidation and carbonization treatment on the composite precursor to obtain the embedded composite carbon wave-absorbing material. The unique structure creates a rich heterogeneous interface, cooperates with dipole polarization, interface polarization, conductive loss and multiple scattering, and jointly constructs an efficient multiple electromagnetic wave loss mechanism, so that the material realizes efficient electromagnetic wave absorption performance on the premise of not depending on magnetic components.

The invention discloses a boron-containing polycyclic compound and an organic photoelectric element containing the same, and belongs to the field of organic photoelectricity. The boron-containing polycyclic compound has a structure as shown in a formula (1) or a formula (2). According to the compound, a boron-containing skeleton and a carbazole derivative are fused through intramolecular conjugation expansion, and a novel rigid unit is constructed. The conjugated fusion not only integrates the electron transport capability of a boron-containing skeleton and the hole transport characteristic and high triplet state energy level of carbazole, but also effectively increases the orbital delocalization range and significantly reduces the singlet state-triplet state energy level difference (delta EST) by reconstructing the distribution of a front line molecular orbital, thereby enhancing the reverse intersystem crossing rate (kRISC) of the compound, and enhancing the efficiency of the compound. And the utilization efficiency of triplet excitons is obviously promoted. When the material is used as a host material to be applied to an organic light-emitting diode, efficient and directional transfer of energy to an object can be ensured, the efficiency of a device is improved, the stability of the device is improved, and the material has a good commercialization prospect.

The invention provides a self-assembled monomolecular layer hole transport material of an indenocarbazole derivative and a preparation method and application thereof, the hole transport material has a structure shown in a formula I. The self-assembled monomolecular layer hole transport material is simple in structure, high in hole transport property, strong in interface passivation ability and high in thermal stability, and can be applied to the field of hole transport. Indenocarbazole with a rigid conjugate large plane is used as a parent nucleus, so that molecular accumulation can be improved, and the hole transport performance of the material can be improved. By taking a phosphate group as a tail end, single-molecule self-assembly can be realized, a perovskite interface can be passivated, the energy loss at the interface is reduced, and the battery performance is improved. When the synthesized material is used as a hole transport layer of an inverted perovskite solar cell, gt can be obtained without doping; and meanwhile, the service life of the perovskite solar cell is greatly prolonged, the stability of the perovskite solar cell is greatly improved, and industrialization of the perovskite solar cell is expected to be achieved.

The application belongs to the technical field of organic synthesis, and provides a star structure carbazole derivative, a preparation method thereof and a carbazole conductive polymer. The application obtains an intermediate by mixing 10-phenyl-10H-phenothiazine, N-bromosuccinimide and a first organic solvent for reaction; obtains the star structure carbazole derivative by mixing the intermediate, 9H-carbazole-2-boronic acid pinacol ester, tetrakis(triphenylphosphine)palladium, an accelerator and a second organic solvent for reaction; and obtains the carbazole conductive polymer by mixing the star structure carbazole derivative and an electrolyte solution for cyclic voltammetry electrochemical polymerization. The method is simple, has few by-products, and the star structure carbazole derivative obtained by the method is a non-coplanar star structure, which is beneficial to the embedding and discharging of electrolyte ions, so that the carbazole conductive polymer has excellent electrochemical performance and energy storage properties, and the conductive polymer also has excellent electrochromic performance.

The present invention discloses a methylidene-modified calix[3]carbazole derivative and its preparation method and application, belonging to the field of medical technology. The methylidene-modified calix[3]carbazole derivative of the present invention has a general structural formula as shown in formula (II); in formula (II), R4, R5, and R6 are each independently selected from one of hydroxyl, C1-C3 alkoxy, amino-substituted C1-C5 alkoxy, benzylamino, hydrazine, fatty amine containing O atoms, fatty amine containing N atoms, or ethoxy. The methylidene-modified calix[3]carbazole derivative of the present invention has good activity in inhibiting tumor cell proliferation and has good development prospects in the preparation of anti-tumor drugs.

The invention discloses a nitrogen-embedded indanone C60 derivative with an addressable spinning energy level and a preparation method of the nitrogen-embedded indanone C60 derivative. A double-cavity structure with an ion source cavity and a reaction cavity connected in series is adopted for preparation, and the preparation method comprises the following steps: taking the indanone C60 derivative as a sublimation raw material, and bombarding the sublimated indanone C60 derivative by using a nitrogen-containing ion beam to realize ion implantation so as to directly form the nitrogen-embedded indanone C60 derivative. Through modification of indanone and introduction of zero field splitting, electron spin transition of embedded nitrogen atoms is degenerated, good spin energy level addressability is achieved, and zero field splitting parameters are respectively calibrated as D = 17.17 MHz and E = 0.39 MHz. The preparation method overcomes the double difficulties of difficult synthesis of the intrinsic nitrogen-embedded fullerene in the preparation of the nitrogen-embedded fullerene derivative and ineffective loss of the intrinsic nitrogen-embedded fullerene in the chemical modification process.

The application discloses application of a carbazole derivative in prevention and treatment of plant diseases and relates to the technical field of medicinal chemistry. The structure of the carbazole derivative is as follows: The carbazole derivative has excellent inhibiting effect on plant pathogenic bacteria such as Xanthomonas oryzae ACCC 11602, Xanthomonas axonopodis pv.Citri, Pseudomonas soli maceraum and Erwinia aroideae, and has the advantages of simple structure, cheap raw materials and easy synthesis, and has the value of further research and development.

The invention relates to the technical field of separation and purification equipment, and discloses separation and purification equipment researched and developed on the basis of dicarbazole and derivatives thereof, the separation and purification equipment comprises a top box, a bottom frame, a separation and purification tank and an auxiliary separation mechanism, and the auxiliary separation mechanism is composed of a shaft frame, a driving mechanism, two coupling assemblies and a homogenizing assembly; according to the technical scheme, the driving mechanism drives the two coupling assemblies to synchronously and relatively move, the coupling assemblies which synchronously and relatively move drive the homogenizing assembly to continuously reciprocate in the first filtering membrane and the second filtering membrane, and the aim of uniformly dispersing the dicarbazole derivative is achieved through the continuous reciprocating motion; and the homogenizing assembly reciprocates in the first filtering membrane and the second filtering membrane to generate damping with the dicarbazole derivative, the damping increases the pressure when the dicarbazole derivative passes through the filtering membranes, and the increase of the pressure can promote the dicarbazole derivative to pass through the filtering membranes in a pressurized state, so that the separation efficiency is effectively improved.

The application belongs to the technical field of functional polymer materials, and provides a heat-crosslinkable high-transparency electrochromic polymer, an electrochromic polymer film and a preparation method thereof. The 3,6-dimethoxy-9-(3-vinylphenyl)-9H-carbazole is obtained by mixing dimethoxy-9H-carbazole, m-bromostyrene, a dialkyl biaryl phosphine ligand, a first catalyst, an organic salt and a first organic solvent and then performing a heating reaction, and then the 3,6-dimethoxy-9-(3-vinylphenyl)-9H-carbazole is mixed with glycidyl methacrylate, a second catalyst and a second organic solvent to perform a polymerization reaction, so as to obtain the heat-crosslinkable high-transparency electrochromic polymer. The method is simple and low in cost, the polymer prepared by the method has carbazole derivatives as color-changing units and epoxy groups as heat-crosslinking units, and the polymer can be in-situ heat-crosslinked by blending with a crosslinking agent and heating in one step, so as to form a neutral-state high-transparency three-dimensional network film, and the polymer is particularly suitable for high-end transparent devices.

The application provides an organic electroluminescence device, and relates to the technical field of organic electroluminescence. The organic electroluminescence device comprises an anode, an organic layer and a cathode, the organic layer comprises a hole transport region, the hole transport region comprises a first hole transport layer and a second hole transport layer, the first hole transport layer contains a carbazole derivative shown in structural formula 1, and the second hole transport layer contains an arylamine compound shown in structural formula 2. The organic electroluminescence device can not only effectively transport holes, but also make the transport of holes and electrons more balanced, and can also limit the carriers in the light-emitting layer, so that the holes and electrons can effectively combine in the light-emitting layer to form excitons to emit visible light. Therefore, the organic electroluminescence device has excellent photoelectric properties, specifically, has a low driving voltage, a high luminous efficiency and a long service life.

A synthesis apparatus for carbazole Schiff bases, consisting of a reaction vessel with heating and stirring mechanism, reflux condenser, catalyst dosing unit, solvent recovery system, crystallization chamber, product collection container and drying unit, wherein all units are functionally interconnected to enable the automated synthesis of carbazole Schiff base derivatives by condensation reactions between carbazole derivatives and substituted aldehydes.

The present invention relates to an organic electroluminescent device comprising at least one light-emitting layer between an anode and a cathode, wherein the light-emitting layer comprises a host and a phosphorescent dopant; the host consists of a multi-component host compound; at least one first host compound of the multi-component host compound is a specific aryl-containing bicarbazole derivative, and a second host compound is a specific nitrogen-containing heteroaryl-containing carbazole derivative. According to the present invention, the organic electroluminescent device using the multi-component host compound has high efficiency and long lifetime compared to conventional devices using a single-component host compound.

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 HOMO energy level and the LUMO energy level of the carbazole derivative provided by the invention can be well matched with adjacent organic functional layers, and the carbazole derivative also has proper charge transfer performance, also has good stability and good film-forming property, and can improve the driving voltage, the luminous efficiency, the service life and the like of a device as a main body material in a luminous layer.

This invention discloses a 3,3-dimethyl-1,2,3,4-tetrahydro-9H-carbazole derivative, its preparation method, and its applications, selected from at least one of compounds having the following structure or a pharmaceutically acceptable salt thereof, a solvent compound of a pharmaceutically acceptable salt, an enantiomer, a non-corresponding isomer, and a tautomer: wherein R 1 It is a phenyl or substituted phenyl; R 2 It is a 5- to 7-membered nitrogen heterocycle or a secondary amine.

The invention relates to organic electroluminescence devices containing indone carbazole derivatives.