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Fluorine derivative and application thereof in organic light-emitting materials

A compound and selected technology, applied in the direction of luminescent materials, organic chemistry, electrical components, etc., can solve the problems of unfavorable device performance and life, poor thermal stability, efficiency roll-off, etc.

Inactive Publication Date: 2018-12-11
BEIJING ETERNAL MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single carrier transport capability will cause a mismatch between electrons and holes in the light-emitting layer, resulting in serious efficiency roll-off and shortened life; in addition, the currently used host materials have poor thermal stability, which affects the performance and life of the device. There are adverse effects; in addition, the energy of the triplet state energy level of the luminescent host material is not high enough, which will generate energy back from the object to the host, resulting in a decrease in luminous efficiency

Method used

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  • Fluorine derivative and application thereof in organic light-emitting materials
  • Fluorine derivative and application thereof in organic light-emitting materials
  • Fluorine derivative and application thereof in organic light-emitting materials

Examples

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Embodiment Construction

[0070] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] The compounds of the synthetic methods not mentioned in the present invention are all raw material products obtained through commercial channels. Various chemicals used in the examples such as petroleum ether, ethyl acetate, n-hexane, toluene, tetrahydrofuran, methylene chloride, carbon tetrachloride, acetone, 1, 2-bis(bromomethyl)benzene, CuI, ortho Phthaloyl chloride, phenylhydrazine hydrochloride, trifluoroacetic acid, acetic acid, trans-diaminocyclohexane, iodobenzene, cesium carbonate, potassium phosphate, ethylenediamine, benzophenone, cyclopentanone, 9-fluorenone , sodium tert-butoxide, methanesulfonic acid, 1-bromo-2-methylnaphthalene, o-dibromobenzene, butyllithium, dibromoethane, o-dibromobenzene, benzoyl peroxide, 1-(2- Bromophen...

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PUM

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Abstract

The invention relates to a compound represented by a general formula (I), (shown in the description), wherein L is selected from a chemical bond, C6-C12 arylidene or sub-polycyclic aromatic hydrocarbon, C3-C12 sub-heteroaryl or sub-polyheterocyclic aromatic hydrocarbon, n represents 1 or 2; and Hy is represented by a formula (Hy1) or (Hy2) (shown in the description), wherein X is selected from a chemical bond, -C(R<3>)2-, -NR<4>-, -O- or S-; and Y is selected from -C(R<3>)2-, -NR<4>-, -O- or S-. The invention further relates to an organic electroluminescence device. An organic light-emitting layer of the organic electroluminescence device contains at least one the compound represented by the general formulae.

Description

technical field [0001] The invention relates to a novel substituted fluorene derivative organic compound, in particular to a compound used in organic electroluminescent devices and its application in organic electroluminescent devices. Background technique [0002] Organic electroluminescent display (hereinafter referred to as OLED) has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, light weight, simple composition and process, etc. Compared with liquid crystal display, organic electroluminescent display is not It needs a backlight source, has a large viewing angle, low power, and its response speed can reach 1000 times that of a liquid crystal display, but its manufacturing cost is lower than that of a liquid crystal display with the same resolution. Therefore, organic electroluminescent devices have broad application prospects. [0003] With the continuous advancement of OLED technology in the two major fields of li...

Claims

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Application Information

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IPC IPC(8): C07D403/10C07D401/14C07D403/14C07D405/14C07D471/04C07D487/04C07D491/048C07D413/10C07D417/10C07D401/10C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D401/10C07D401/14C07D403/10C07D403/14C07D405/14C07D413/10C07D417/10C07D471/04C07D487/04C07D491/048C09K2211/1029C09K2211/1007C09K2211/1011C09K2211/1033C09K2211/1037C09K2211/1088C09K2211/1044C09K2211/1059H10K85/615H10K85/654H10K85/6574H10K85/657H10K85/6572H10K50/11
Inventor 邢其锋李之洋刘叔尧任雪艳
Owner BEIJING ETERNAL MATERIAL TECH
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