274 results about "Triphenyl diamine" patented technology

The present invention provides a light-emitting element that includes a pair of electrodes, and an organic compound that has a glass-transition temperature of 150° C. or more, preferably 160° C. or more and 300° C. or less, and a metal oxide that are provided between the pair of electrodes, or includes a pair of electrodes, and a compound having a spiro ring and a triphenylamine skeleton and a metal oxide that are provided between the pair of electrodes. It is a feature that the compound has a spiro ring and a triphenylamine skeleton is a benzidine derivative represented by a general formula (1) In the formula, R¹ is hydrogen or an alkyl group having 1 to 4 carbon atoms.

An OLED device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL) comprising a phosphorescent emitting compound disposed in a host comprising a mixture of at least one electron transporting co-host which is a benzophenone derivative with a spiro substituent and at least one hole transporting co-host which is a triphenylamine which contains one trivalent nitrogen atom that is bonded only to carbon atoms, at least one of which is a member of an aromatic ring, wherein there is present an electron transporting layer contiguous to the LEL (HBL?) on the cathode side comprising an anthracene or a fluoranthene and wherein there is present an election injecting layer comprising a phenanthroline or a lithium quinolate contiguous to the cathode.

The invention provides a reversible overcharge protective electrolyte additive for a lithium battery and a preparation method thereof. The invention is characterized in that the additive contains at least one aromatic compound selected from amino-benzene, diphenylamine, triphenylamine, pyrrole, thiophene, phenylene sulfide and benzene, or at least one derivative thereof, the mass percentage of the additive in the electrolyte is in a range from 0.3 percent to 20 percent. An auxiliary solvent made of methylbenzene, dimethylbenzene, carbon tetrachloride or chloroform, in a volume less than 20 percent of the electrolyte, is added into the common electrolyte, to increase the dissolvability of the additive molecule in the electrolyte. Then the electrolyte additive is added. The additive molecule can rapidly undergo polymerization at a certain electric potential and form a polymer bridge between the anode and the cathode, and the electronic conductivity of the polymer bridge can reversibly change between insulation state and conduction state along with the voltage variation of the anode, thereby providing the battery with reversible overcharge protection.

Any of the oligoaniline compounds with a triphenylamine structure represented by the formula (1) exhibits satisfactory light emitting efficiency and brightness performance when used in either an OLED device or a PLED device and is further satisfactory in the solubility in organic solvents so as to be applicable to various coating methods.

(each of R¹ and R² independently is a hydrogen atom, an optionally substituted monovalent hydrocarbon group, t-butoxycarbonyl, etc.; each of R³ to R³⁴ independently is a hydrogen atom, hydroxyl, silanol, thiol, carboxyl, a phosphoric group, a phosphoric ester group, ester, thioester, amido, nitro, an optionally substituted monovalent hydrocarbon group, etc.; and each of m and n is an integer of 1 or greater provided that they satisfy the relationship m+n≦20).

The invention belongs to the technical field of solar batteries, which more particularly relates to a preparation of a novel triphenylamine group organic dye and the application thereof as a photosensitizer in a dye-sensitized solar cell. The triphenylamine group organic dye provided by the invention has excellent light-capturing capacity; the D-Pi-A molecular structure thereof causes the effective transferring of the electrons in the molecule. The titanium dioxide electrode sensitized by the dye is applied to the dye-sensitized solar cell and obtains a higher photoelectric conversion property. The novel triphenylamine group organic dye provided by the invention is novel in structure, is easy to be composed, is low in cost, and has excellent photoelectric properties, can be modified by molecule designing and shows a potential application prospect to replace a heavy metal organic photosensitizer.

An organic solar cell material and the preparation thereof belong to the field of organic photoelectric materials. The invention discloses an organic solar cell material which contains C60-triphenylamine-thiofuran ternary system which is a fullerene-contained D-A (Donor-Accepter) type difunctional material, wherein the triphenylamine and the thiofuran are in stellated structure. Compared with the fullerene, the compound has greatly improved solubility in organic solvent, so that the process for manufacturing the large-area solar cell is simplified, stronger absorption is ensured in a visible region with a maximum of about 500 nm that is similar to the maximum of solar radiation energy of 475 nm, matching of the compound and solar spectrum radiation is enhanced, solar spectrum response of the material, as well as the photoelectric conversion efficiency is improved. In the invention, the compound can be polymerized on a macromolecule through simple ligand modification, and is made into PLED by spin coating, so as to overcome the defects of possible decomposition by heating and poor crystallization-resistant performance of the small-molecule luminescent material in the evaporation process.

The invention discloses a fluoradene derivative and a preparation method thereof. The preparation method comprises the following steps of: introducing fluoradene rings into compounds, namely carbazole, hexyl carbazole, triphenylamine and hexyl triindole; and catalyzing intramolecular carbon-hydrogen bond activation and hydrogen halide elimination reaction through palladium and efficiently constructing a carbon ring or a heterocyclic compound, particularly constructing the carbon ring with a novel structure. The invention aims to synthesize and characterize a fluoradene structural unit-containing large-tension cyclic compound; and the novel fluoradene structural unit-containing compound is expected to be used in the field of organic photoelectric materials.

The invention discloses a tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell, and mainly aims at solving the problems that an existing hole transport material is high in cost, low in carrier mobility and unstable in property. The tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell comprises a substrate (1), a negative electrode (2), an electron transport layer (3), an optical active layer (4), a hole transport layer (5) and a positive electrode (6) from bottom to top, wherein a tetraphenyl-triphenylamine polymer TPE-TPA with the thickness of 80nm to 200nm is adopted by the hole transport layer (5); and the hole transport layer is prepared through a TPE-TPA precursor solution spin-coating method. According to the hole transport layer disclosed by the invention, a close contact between the optical active layer and the hole transport layer can be effectively suppressed; the carrier recombination probability at the interface is lowered; the interface characteristics are improved; the properties of the perovskite solar cell are effectively improved; and the tetraphenyl ethylene polymer hole transport layer-based perovskite solar cell can be applied to photoelectric conversion.

The invention discloses an inorganic perovskite quantum dot light-emitting diode with inverted structure, which comprises an ITO glass substrate, a ZnO electron transmission layer, an inorganic perovskite CsPbX3 quantum dot light-emitting layer, a 4,4',4''-tri(carbazole-9-yl) triphenylamine hole transport layer, a hole injection layer and an anode electrode material, wherein the ZnO electron transmission layer is deposited on the ITO glass substrate. The inorganic perovskite quantum dot light-emitting diode is prepared by the following steps: firstly, depositing the ZnO electron transport layer on clean ITO glass by a magnetron sputtering method, and then carrying out spin coating of taken dispersion liquid of CsPbX3 quantum dots on the surface of a device; secondly, carrying out thermal evaporation deposition of a TCTA hole transport layer and carrying out thermal evaporation deposition of the hole injection layer; and finally depositing the anode electrode material. The light-emitting diode disclosed by the invention can adjust the coverage area of the halogen proportion of the quantum dot light-emitting layer material on the visible light, and is stable to shine and high in luminous efficiency.

The present invention relates to a phosphorescent polymer compound comprising a phosphorescent monomer unit and a hole transporting monomer unit having a triphenylamine structure represented by the formula (1): (in the formula, the symbols have the same meanings as defined in the Description), and an organic light emitting device using the compound. Use of the phosphorescent polymer compound of the present invention enables production of organic light emitting device with a high light emitting efficiency at a low voltage, which is suitable for increasing the emission area and mass production.

The invention discloses polyimide with low dielectric properties, and a preparation method and an application thereof. The polyimide provided by the invention is prepared through an imidization method by using the raw materials of aromatic diamine comprising triphenylamine and with large side group comprising triphenylethylene/tetraphenylethylene, and various tetra-dianhydrides. The polyimide provided by the invention has ultra-low dielectric constant, relatively low dielectric loss, excellent solubility, relatively high glass transition temperature, relatively high thermal stability, excellent mechanical performances, excellent photo-luminescent performance, and the like. The synthesis method of the polyimide is simple and diverse, and is suitable for industrial productions. The polyimide provided by the invention can be used for preparing low dielectric materials, and can be widely applied in high-tech industry fields such as electronics, microelectronics, information, luminescent materials, aeronautics and astronautics, and specially very large scale integrated circuits.

The invention provides a quantum dot light-emitting diode and preparation method thereof. The preparation method includes printing a mixed organic solution including poly(3,4-ethylenedioxythiophene) and polystyrolsulfon acid salt, an organic solution including a triphenyl diamine polymer, an organic solution including quantum dots and an organic solution including zinc oxide on a conductive substrate surface in sequence through an ink-jet printing method to obtain a primary quantum dot light-emitting diode; and depositing an electrode on the non-conductive substrate side of the obtained primary quantum dot light-emitting diode to obtain the quantum dot light-emitting diode. The preparation method realizes large-area simple preparation of quantum dot light-emitting diode by adoption of an ink-jet printing technology combined with a defined proportion of ink, and the operation is simple; and the ink used by the preparation method contributes to improvement of printing resolution, ensures uniformity of printing, and facilitates electric conduction light emission of the diode.

The invention provides a triphenylamine self-powered electrochromic material, namely a compound (4-((4-(N, N-dimethylamine)phenyl)(phenyl)amino)benzyl)phosphonic acid and a synthesis method thereof. The invention also provides a self-powered electrochromic device containing the triphenylamine derivative. The novel triphenylamine derivative electrochromic material provided by the invention has double performance of photoelectric conversion and electrochromism; and the device consisting of the compound can realize the self-powering feature, namely that the device absorbs light energy and converts the light energy into electric energy for driving the device to change color. The novel device is simple in structure, low in preparation cost, green and environment-friendly and the like, and can be applied to the fields of buildings, automobiles, displays and the like.

The invention discloses a pyridine-triphenylamine-anthracene conjugated molecule with an aggregation-induced emission property and a preparation method thereof. The conjugated molecule comprises a pyridine group, a triphenylamine group and an anthracene group at a ratio of 4:2:1. The pyridine-triphenylamine-anthracene conjugated molecule emits red light in solid state, and emits green fluorescence in a tetrahydrofuran dilute solution; in the mixed solvent of water and tetrahydrofuran, the emission wavelength of aggregative state nono particles covers the broadband from green light to yellow light along with the increase of content of poor solvent water. The pyridine-triphenylamine-anthracene conjugated molecule has the aggregation-induced emission property.

The invention discloses triphenylamine derivatives, and a preparation method and application thereof. The structure of the triphenylamine derivatives is disclosed as Formula (I). The preparation method comprises the following steps: (1) carrying out Knoevenagel condensation reaction on anisaldehyde and p-bromobenzyl cyanide to generate a bromated distyrene nitrile intermediate; and (2) carrying out Suzuki reaction on the bromated distyrene nitrile intermediate and 4-(diphenylamino)phenylboronic acid to generate the triphenylamine derivatives disclosed as Formula (I). The triphenylamine derivatives (I) disclosed by the invention have reversible-force-stimulated fluorescence switching performance, thus, can be used as a reversible-force-stimulated fluorescence switching material, and can be used in the fields of fluorescence switching, sensors, memories, display and the like.

Cobalt polypyridine complexes are interesting alternative redox mediators for large scale manufacturing of dye-sensitized solar cells (DSCs) since they are less aggressive towards metal contacts and absorb less light than iodide/triiodide. Here we have examined the effect of steric properties of triphenylamine-based organic sensitizers and cobalt polypyridine redox mediators on the electron lifetime and overall device performance in DSCs. Matching the steric bulk of the dye and redox mediator was found to minimize recombination and mass transport problems in DSCs employing cobalt redox mediators. Recombination was efficiently slowed down by introducing insulating butoxyl chains on the dye, allowing the use of a cobalt redox mediator with a less steric bulk. The best efficiency of DSCs sensitized with a triphenylamine-based organic dye in combination with cobalt(II/III) tris(2,2′-bipyridyl) match the highest efficiencies obtained so far with iodide-free electrolytes, reaching a 6.3% overall conversion efficiency under AMI.5 condition (1000 Wm-2) and an efficiency of 7.8% at 1/10 of a sun. Organic dyes with high extinction coefficient can thus be used instead of standard ruthenium sensitizers to build thin films DSCs in order to overcome mass transport and recombination limitations associated with the cobalt redox couples. DSCs sensitized with organic dyes employing cobalt redox mediators are promising for low light intensity applications since the efficiency and voltage is high at indoor illumination.

The invention discloses an application ofoxygen-nitrogen free radical group containing triphenylamine derivate polymer as an electrochromic material. The structure of the triphenylamine derivate polymer is shown as the formula (1), and in the formula (1), n represents the average degree of polymerization, and n ranges from 10 to 2,000. Compared with other existing electrochromic materials, the prepared electrochromic material has short response time, the large color contrast ratio and good stability, when the electrochromic material is tested at the position of the visible wavelength of 1,100 nm, the contrast ratio is 47.3%, the response time is 0.43 s, and 96.8% of initial electrochemical activity is still kept after cyclic voltammetry continuous scanning is carried out for 300 circles. The formula I is shown in the specification.

The invention relates to a quinacridone derivative and application thereof. The quinacridone derivative is obtained by subjecting quinacridone (matrix) to chemical modification (connection with electron-donating groups and electron-withdrawing groups of triphenylamine). In the quinacridone derivative which contains donor-acceptor electronic groups and is designed and prepared in the invention, electrons are easier to transfer in an excitation state, so that the quinacridone derivative achieves the performance of effectively converting optical energy into electric energy and can be used as a photosensitizer for a dye-sensitized nanocrystal solar cell. Experiments show that the quinacridone derivative provided by the invention has favorable photosensitization property.

The invention provides an organic dye for a dye sensitized solar cell and a preparation method of the organic dye, belonging to the technical field of organic high polymer materials and relating to a dye sensitized solar cell technology. In the provided organic dye, phenothiazine-triphenylamine is used as a cascading electron donor, and the organic dye provided by the invention belongs to a D-D-pi-A structured molecule and is novel organic dye containing a phenothiazine-triphenylamine cascading electron donating group. The organic dye provided by the invention is applied to the dye sensitizedsolar cell, and higher photoelectric conversion efficiency is obtained. The preparation method has the characteristics of low cost and simple, controllable preparation process and environmental friendliness. The novel organic dye molecule belongs to a pure organic compound, expensive raw material metal ruthenium does not need to be used, the novel organic dye is easy to synthesize, and has low cost and potential application prospect in the aspect of substituting noble metal organic dyes.

The invention discloses thiophene-containing triphenylamine conjugated aromatic amide as well as a preparation method and application thereof, relates to an electrochromic material and a preparation method thereof, and solves the problems of complicated synthetic process, poor thermal stability and low electrochromic response sensitivity of an existing amide electrochromic material. Thiophene-containing triphenylamine conjugated aromatic amide has a structural formula shown in the specification. The preparation method comprises the following steps: 1, dissolving diamine monomers and triethylamine in a DMF (dimethyl formamide) organic solvent to obtain mixed liquid A; 2, dissolving alpha-thiopheneacyl chloride in the DMF organic solvent to obtain mixed liquid B, mixing the mixed liquid A with the mixed liquid B in an ice water bath, and performing heating reflux to obtain reaction liquid; 3, filtering and collecting solid-phase matters, performing chromatographic separation, and re-crystallizing. The electrochromic material is simple to prepare, good in thermal stability, relatively good in electrochromic response sensitivity and relatively wide in color change range.

The invention discloses a functional porous organic polymer photocatalyst, and a preparation method and application thereof, and belongs to the technical field of material preparation and catalysis. The prepared catalyst is a porous organic polymer containing a triazinyl group and a triphenylamine group and can realize preparation of carbon monoxide by converting the carbon dioxide through efficient visible light catalysis; the prepared catalyst has large specific surface area, mild catalytic reaction condition, high yield and high cycle performance, meets the actual production requirement andhas great application potentiality.

The present invention is multiramose double photon pumped fluorescent oxdiazole material and its preparation process. The oxdiazole material is prepared with polycyclic arene bromide and 3, 5-bis{2-(4-tertiary butyl phenyl)-5-[1, 3, 4]-oxdiazolyl}-styrene or 2-(4-tertiary butyl phenyl)-5-[1, 3, 4]-oxdiazolyl-styrene, and through Heck reaction inside mixed solvent of triethylamine and N, N-dimethyl formamide catalyst under the action of catalyst palladium acetate and tri-o-methylphenyl phosphide; or prepared with triphenylamido aromatic aldehyde derivative and benzyl bromo triphenyl phosphine containing [1, 3, 4]-oxdiazole structure, and through solid and liquid Wittig reaction. The oxdiazole material possesses sufficient double photon absorption cross section, high double photon fluorescence efficiency and high heat stability, and can emit strong double photon up converted green and blue fluorescence under the excitation of 800 nm laser beam.

The invention relates to a toluylene-containing meta-substituted sulfonium salt photoproduction acid agent and a preparation method thereof. Triphenylamine is used as an electron donor and coupled with a meta-substituted sulfonium salt electron acceptor through a toluylene structure so as to synthesize the photoproduction acid agent, and the electron donor and the meta-substituted sulfonium salt electron acceptor form D-phi-A type molecules through the toluylene structure so as to synthesize the high-performance photoproduction acid agent with double-photon absorption capacity. The photoproduction acid agent has good dissolubility in common solvents such as dichloromethane, trichloromethane, acetone and tetrahydrofuran, the synthesis steps are simple, purification is easy, and the yield is high. The photoproduction acid agent shows the photoproduction acid quantum yield of over 0.50 in an ultraviolet area. Moreover, under a shading condition, the photoproduction acid agent can be preserved for long time and has high chemical stability. The photoproduction acid agent has huge application value in the fields of single-photon lithography and double-photon lithography.