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Organic light-emitting material and application of organic light-emitting material for preparing organic electroluminescence device

A luminescent material and luminescent technology, applied in luminescent materials, electrical solid devices, electrical components, etc., can solve the problems of weak charge interaction, long distance between carbazole rings, low charge mobility, etc., and achieve carrier balance improvement , luminous efficiency and life improvement, the effect of excellent performance

Inactive Publication Date: 2019-12-03
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the distance between the diazalated aromatic heterocycle disclosed in CN107445962A and the fused carbazole ring is relatively long, resulting in weak charge interaction and low efficiency of the device; Compounds, the structure of heterofused rings formed by triphenylene fragments is aromatic rings, the energy level of the material is low, and the charge mobility is also low, making the device efficiency low

Method used

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  • Organic light-emitting material and application of organic light-emitting material for preparing organic electroluminescence device
  • Organic light-emitting material and application of organic light-emitting material for preparing organic electroluminescence device
  • Organic light-emitting material and application of organic light-emitting material for preparing organic electroluminescence device

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Embodiment Construction

[0041] Synthetic example

[0042] The synthesis path of triphenylene fused ring derivatives described in the present invention is as follows:

[0043]

[0044] Based on the above synthesis equation, in the synthesis process of the different triphenylene fused ring derivatives of the present invention, it is only necessary to replace different R-X according to the structural characteristics of the target product 2Different target compounds can be obtained by performing synthesis. And it should be noted that the C-N coupling method is used in the synthesis method shown above, but it is not limited to this coupling method, and those skilled in the art can also select the C-N coupling method according to the structure of the target product. other suitable methods. The following synthesis examples illustrate the synthesis process by taking part of the target compounds as representatives.

[0045] Synthesis of Synthetic Example 1 Compound A1

[0046]

[0047] In the reacti...

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Abstract

The invention relates to a novel organic compound, in particular to an organic light-emitting material, and further discloses a preparation method thereof and application for preparing an organic electroluminescent device. The disclosed organic light-emitting material has a parent structure of a triphenylene fused aromatic ring with polycyclic conjugation characteristics, bond energy between atomsis high, thermal stability is good, solid-state accumulation between molecules is also facilitated, and the service life of the material can be effectively prolonged when being used as a light-emitting layer.

Description

technical field [0001] The invention relates to a new type of organic compound, in particular to an organic luminescent material, and further discloses its preparation method and application for preparing an organic electroluminescent device. Background technique [0002] Electroluminescence (EL) refers to the phenomenon that luminescent materials emit light under the action of an electric field and are excited by current and electric field. It is a luminescence process that directly converts electrical energy into light energy. 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 requires a backlight source, has a large viewing angle and low power, and its response speed can reach 1000 times that of a liquid crystal dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/88C07D471/04C07D471/14C07D471/22C07D487/04C07D491/048C07D495/04C07D495/14C09K11/06H01L51/54
CPCC07D471/04C07D487/04C07D471/22C07D471/14C07D495/14C07D495/04C07D491/048C07D209/88C09K11/06C09K2211/1007C09K2211/1029C09K2211/1044C09K2211/1092C09K2211/1088C09K2211/1011C09K2211/1014H10K85/622H10K85/626H10K85/615H10K85/631H10K85/654H10K85/6576H10K85/6574H10K85/657H10K85/6572
Inventor 邢其锋李之洋邵爽
Owner BEIJING ETERNAL MATERIAL TECH
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