117 results about "Phenoxazine" patented technology

The invention discloses an asymmetrical thermal-activation-delayed aggregation-induced emission material based on a diphenyl sulfone phenoxazine, as well as a synthesis method and application of the material. A core structure of the material comprises a diphenyl sulfone unit and a phenoxazine group, and further comprises an electronic structure unit made from aryl heterocyclic groups except a phenoxazine substituent. The synthesis method and the purification process of the material are simple, the thermal performance, luminous performance and the like of an end product can be adjusted according to the connection of different groups, the obtained emission material has thermal-activation-delayed fluorescent and aggregation-induced emission performance at the same time, is good in heat stability, higher in glass transition temperature and excellent in luminous performance. A non-doped OLED device manufactured by using the emission material as the luminous layer is high in luminous brightness and good in stability, so that the luminous efficiency and the service life of the OLED device can meet the practical requirements.

The invention belongs to the field of organic photoelectric material technology, and discloses an organic small molecule luminescent material and an organic electroluminescent device prepared from same. The organic small molecule luminescent material uses 9,9-dimethyl-10- phenyl acridine or 10-phenyl phenoxazine as an electron providing unit, and is connected with a different electron withdrawing unit at 2-site of the acridine group or the 3-site of the phenoxazine group to obtain a series of novel efficient organic small molecule luminescent materials. The organic small molecule luminescent material can change the characteristic of intramolecular charge transfer in the material, can make the luminescence peak of the luminescent material has a blue-shift, can be used as a luminescent layer for the organic electroluminescent device, and has a high device efficiency.

A conjugated polymer having a phenoxazine structure and a phenothiazine structure as subsituents.

The invention provides a compound, a display panel and a display device. The compound is in a structure shown as a formula (I), wherein R1 and R2 refer to electron-donating groups and independently selected from any one of C1-C20 alkyl groups, C3-C20 cycloalkyl groups, C1-C20 alkoxy groups, a phenyl, a biphenyl, a naphthyl, an anthryl, a phenanthryl, an acenaphthylene group, a pyrenyl, a perylenegrouop, a fluorenyl, a spirobifluorene group, a chrysene group, a benzo-phenanthryl, a benzo-anthryl, a fluoranthene group, a pyrene groupo, a furyl, a benzofuryl, a substituted or unsubstituted dibenzofuran group, a substituted or unsubstituted thienyl, a benzothiophene group, a dibenzothiophene group, a phenoxazine group, a phenazinyl, a phenothiazinyl, a thianthrene group, a carbazolyl, an acridinyl and a diarylamine group, and m is selected from an integer range of 1-4. The compound is a material with AIE characteristics and TADF characteristics, triplet-state excitons are converted into singlet-state excitons through a reverse intersystem conversion process to realize radioluminescence, and the exciton utilization rate of luminescent materials is increased.

The invention belongs to the field of organic electroluminescent materials and particularly relates to a novel thermal-activated-delayed-fluorescence luminescent material and an application thereof. The material is characterized by comprising a structure represented by a formula (1) shown in the description, wherein R1 and R2 each is any one independently selected from a group consisting of a hydrogen atom, a C3-C30 substituted or unsubstituted carbazolyl group, a C3-C30 substituted or unsubstituted arylamine group, a C3-C30 substituted or unsubstituted phenothiazine group, a C3-C30 substituted or unsubstituted phenoxazine group, a C3-C30 substituted or unsubstituted phenazine group and a C3-C30 substituted or unsubstituted acridine group, and R1 and R2 are not hydrogen simultaneously; and R3 is any one selected from a group consisting of hydrogen and C1-C10aliphatic straight-chain or branched-chain alkane. The material provided by the invention is stable in property, has good luminescent performance and is applied to organic electroluminescent devices as a luminescent material.

The invention discloses an organic electrosynthesis method of a phenothiazine/phenoxazine compound. The organic electrosynthesis method adopts an organic electrosynthesis means for a compound shown ina formula I and a compound shown in a formula II to prepare the phenothiazine/phenoxazine compound. The organic electrosynthesis method disclosed by the invention has the beneficial effects that a target product shown in a formula III can be obtained by directly activating C-H without need of expensive halogenated raw materials and additional reduction and substitution processes, so that the process flow is obviously shortened, the operation is simplified, the preparation efficiency is improved, and the production cost is reduced; the reaction condition is simple, mild and environmentally friendly, the atom economy is high, the adaptation range of a reaction substrate is wide, and the yield of a target product is high.

The invention provides a compound, a display panel and a display device. The compound has the structure shown in formula (I), L represents substituted or unsubstituted phenyl, naphthyl, pyridyl, pyrimidinyl and pyrazinyl; D is an electron-donating group and independently selected from any one of substituted or unsubstituted phenyl, biphenyl, naphthyl, anthryl, phenanthryl, acenaphthylene, pyrenyl,peryl, flurenyl, spiro bifluorenyl, benzophenanthryl, benzanthracene, fluoranthryl, picene, furyl, benzofuryl, dibenzofuryl, thienyl, benzothienyl, dibenzothienyl, phenoxazine, thianthryl, carbazolyl, acridinyl and diarylamino. The designed compound has a TADF characteristic and can emit light by triplet exciton of traditional fluorescence molecular transition inhibition so as to improve the device efficiency.

The invention belongs to the field of organic electroluminescence materials, and particularly relates to an organic electroluminescence material comprising a 4,5-diazaspiro thioxanthone structure, application of the organic electroluminescence material, and a device; the organic electroluminescence material can be used for OLEDs (Organic Light Emitting Diodes), has very good bipolar transmission property and can be used as a main material. A structural formula is as shown in the description, wherein Ar1 and Ar2 are independently selected from hydrogen atoms, substitutive or non-substitutive carbazole groups of C3 to C30, substitutive or non-substitutive arylamine groups of C3 to C30, substitutive or non-substitutive phenothiazine groups of C3 to C30, substitutive or non-substitutive phenoxazine groups of C3 to C30, substitutive or non-substitutive phenazine groups of C3 to C30 and substitutive or non-substitutive acridine groups of C3 to C30, and Ar1 and Ar2 are not hydrogen at the same time. The invention also relates to the device comprising at least one layer of bipolar compound as a main body, and a method for manufacturing the device.

The invention discloses a method for synthesizing N-aryl-phenoxazine compounds, and belongs to the chemical synthesis filed. The method comprises the following steps: taking a compound represented by the formula I, which is shown in the description, as the raw materials; mixing the compound with a solvent, a catalyst, and an alkali reagent, adding an arylation agent, and carrying out reactions at a temperature of 50 to 250 DEG C so as to obtain the target product; wherein the solvent is amides, benzenes, or nitriles; the catalyst is copper halide, cuprous halide, alkyl copper carboxylate, alkyl copper carboxylate hydrate, aryl copper carboxylate, cuprous oxide, or cuprous cyanide; and the arylation agent is iodobenzenes represented by formula II, which is shown in the description, mono-substituted iodopyridine, or 3-iodothiophene. The method has the advantages of simple reaction steps and high yield of target product.

The invention provides a polyfluorene derivative and an organic light-emitting device thereof, and belongs to the technical field of organic photoelectric materials. The derivative has a structure shown as a formula (I). The polyfluorene derivative disclosed by the invention has a larger conjugate plane structure, so that high electron fluidity can be provided; electron-deficient group dibenzofuran, dibenzothiophene, acridine, phenoxazine and phenothiazine structures are introduced to better facilitate the acception of electrons and enable the polyfluorene derivative to have good transmissionperformance; by introducing a bridged structure, on the one hand, the molecular weight of the compound can be enlarged, and the obtained material is enabled to have high glass transition temperature and prevent the crystallization effect; on the other hand, the derivatives are enabled to have certain distortion in three-dimensional stereoscopic structure, and the film-forming property of the derivative is improved. The organic light-emitting device, which is prepared by using the compound as a main body material in a luminescent layer, shows the advantages of low driving voltage and high luminous efficiency; the polyfluorene derivative is an organic luminescent material with excellent performance.

The invention relates to a room temperature phosphorescent compound and composition and application thereof based on phenothiazine or phenoxazine and derivatives substituting naphthalene or naphthalene derivatives, and belongs to the technical field of phosphorescent compounds. The room temperature phosphorescent compound is represented in a formula (1) or (2), and has room temperature phosphorescence characteristics. The invention further provides a room temperature phosphorescent composition with high luminous efficiency, and the room temperature phosphorescent composition is composed of thecompound represented by the formula (1) or (2) and a compound containing a 1,3,5-triazine group. The phosphorescent compound has the characteristics of room temperature phosphorescence emission in both the crystalline state and the amorphous state, and the compound and the composition are used as a luminescent material for preparing a luminescent layer of an organic electroluminescent device, andthe prepared organic electroluminescence device achieves an important breakthrough in pure organic electrophosphorescent devices.

The invention belongs to the technical field of organic functional materials, and discloses a hole transport material with phenoxazine as a core structure, a preparation method thereof, and application of the hole transport material in perovskite solar cells. The hole transport material with the phenoxazine derivative as the core structure, two end of which are connected with N,N-dimethoxyaniline,has the advantages of stable natural condition, low cost, high hole mobility, high electric conductivity and the like; the hole transport material with phenoxazine as a core structure has lower production cost and comparable photoelectric conversion efficiency as compared with a conventional hole transport material Spiro-OMeTAD; the novel hole transparent material with phenoxazine as a core structure has a broad application prospect, providing a new choice for manufacture of efficient and stable perovskite solar cells in terms of hole transport materials.

The invention provides an organic electroluminescence material with a phenoxazine/thenoxazin type derivative and an organic luminescent device, belongs to the technical field of organic photoelectric materials, and aims to solve the technical problems that in the prior art an organic photoelectric material is poor in light emission property such as low light emission efficiency, relatively high driving voltage and short service life. Compared with the prior art, the organic electroluminescence material based on the phenoxazine/thenoxazin type derivative, which is provided by the invention, has driving voltage of 3.8V at least and light emission efficiency as high as 18.8cd/A, and is an excellent OLED material.

Derivatives of phenothiazine, phenoxazine, and phenazine compounds and their use as α-synuclein ligands are described. Also described are methods of using these compounds and their radiolabeled analogs for the detection, monitoring, and treatment of synucleinopathies, including Parkinson's disease.

The invention relates to the field of display and especially relates to compound, an organic light-emitting device and a display device. The compound is shown as a formula I in the following image description, wherein X group is chosen from carbazolyl, dihydroacridine, dihydrophenazine, phenoxazine, phenothiazine, benzopyrrolocarbazolyl, benzofurocarbazolyl, benzothienocarbazolyl, indenocarbazolylor triphenylamine; the X perssadgroup is substituted or unsubstituted; A group is chosen from acryl with a carbon atom number as 6 to 30, alkyl with a carbon atom number as 1 to 20 or cycloalkyl witha carbon atom number as 3 to 20; the A group is substituted or unsubstituted.

A polymer compound comprising a residue of a compound represented by the following formula (0):

wherein Ar⁰ represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group and the like, or a group represented by the following formula (A), at least two Ar⁰s are groups represented by the following formula (A), R⁰ represents a substituent such as an alkyl group, an alkoxy group, an aryl group and the like, l and m represent an integer of 0 to 3,

wherein A⁰ represents —N═ or —C(R²)═. R² represents a substituent such as a hydrogen atom, an alkyl group, an alkoxy group, an aryl group and the like.

The invention provides a phenoxazine derivative and an organic light-emitting device thereof, and belongs to the technical field of organic photoelectric materials. The above compound has a structurerepresented by formula (I), and introduction of a phenoxazine structure to one end increases the transportability of carriers; introduction of a bridging structure to a specific position can increasethe molecular weight of the compound to make the obtained material have a high glass transition temperature and not crystallize, and also makes the compound have a certain distortion in a spatial three-dimensional structure in order to improve the film forming property; and introduction of a cyano structure capable of easily accepting electrons to the other end of the bridging structure further increases the transportability of carriers. The organic light-emitting device produced by using the compound as a light-emitting layer host material has the advantages of low driving voltage and high light-emitting efficiency, and is an organic light-emitting material with excellent performances.

The invention discloses diamine containing phenoxazine and amide structures and polyimide thereof. The preparation method comprises the following steps: converting halogen atoms of dihalogenated phenoxazine into cyano groups, carrying out hydrolysis to obtain a dicarboxylic acid monomer, then carrying out acylating chlorination, grafting a nitro-containing group through an amide reaction, finallycarrying out reduction to obtain a diamine monomer containing the phenoxazine and the amide structures, and polymerizing the prepared diamine monomer with dianhydride to obtain polyimide containing the phenoxazine and the amide structures. The planar rigid structure of the phenoxazine and the amide polar group are creatively introduced into a polyimide main chain, the planar rigid structure is beneficial to regular stacking of molecular chains and induction of polymer crystallization, and polar groups can enhance the hydrogen-bond interaction of the molecular chains and promote tight stackingof the molecular chains so that polyimide has excellent barrier property, higher glass-transition temperature and thermal stability, lower thermal expansion coefficient and good antibacterial property.