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Electroluminescent material, preparation method of electroluminescent material, and light-emitting device

A technology of electroluminescent materials and light-emitting layers, which is applied in the direction of light-emitting materials, electric solid devices, electrical components, etc., can solve the problems of low efficiency and achieve the effect of enhancing the charge transfer properties

Active Publication Date: 2020-09-08
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

[0002] In the prior art, organic light emitting diodes (Organic Light Emitting Diode) have self-luminous properties, and the materials that dominate their light emission are mainly electroluminescent materials. However, the current electroluminescent materials that emit red light have low efficiency. Therefore, It is necessary to provide an electroluminescent material with high efficiency and capable of emitting deep red light, a preparation method of the electroluminescent material and a light-emitting device

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  • Electroluminescent material, preparation method of electroluminescent material, and light-emitting device
  • Electroluminescent material, preparation method of electroluminescent material, and light-emitting device
  • Electroluminescent material, preparation method of electroluminescent material, and light-emitting device

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[0029] The following will clearly and completely describe the technical solution in the application with reference to the accompanying drawings in the implementation manner of the application. Apparently, the described implementations are only some of the implementations of this application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

[0030] The present application provides an electroluminescence material. The structural formula of the electroluminescent material is and One of. The R 1 The structural formula is and One of.

[0031] The electroluminescent material is a deep red photothermally activated delayed fluorescence (Thermally Activated Delayed Fluorescence, TADF) material. The electroluminescent material provided by this application uses cyclic dipyridone with a low t...

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Abstract

In the electroluminescent material, the preparation method of the electroluminescent material and the light-emitting device provided in the embodiments of the present application, the electroluminescent material is generated by reacting the first reactant and the second reactant, and the electroluminescent material adopts a low three-line The state-level cyclic dipyridone as the acceptor unit further enhances the charge transfer properties between the acceptor unit and the donor unit by utilizing the strong electron-pulling properties of the pyridine group, thereby achieving high-efficiency, deep-red light electroluminescent materials.

Description

technical field [0001] The present application relates to the display field, in particular to an electroluminescence material, a preparation method of the electroluminescence material and a light emitting device. Background technique [0002] In the prior art, organic light emitting diodes (Organic Light Emitting Diode) have self-luminous properties, and the materials that dominate their light emission are mainly electroluminescent materials. However, the current electroluminescent materials that emit red light have low efficiency. Therefore, It is necessary to provide an electroluminescent material capable of emitting deep red light with high efficiency, a preparation method of the electroluminescent material and a light emitting device. Contents of the invention [0003] The present application provides an electroluminescent material, a preparation method of the electroluminescent material and a light-emitting device, so as to realize the preparation of high-efficiency, ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D471/04C07D519/00C07F7/08C09K11/06H01L51/54H01L51/50
CPCC07D471/04C07D519/00C09K11/06C07F7/0816C09K2211/1033C09K2211/1029C09K2211/104C09K2211/1088C09K2211/1037H10K85/657H10K85/40H10K85/6572H10K50/11
Inventor 吴凯龙张曲
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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