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
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap