Quinoxaline compound containing triazine group, quinoxaline composition, electron transport material and electroluminescent device

A technology of electron transport materials and triazine groups, which is applied in the direction of electric solid devices, electrical components, organic chemistry, etc., can solve the problems of high working voltage of electron transport materials, achieve enhanced ability to transport electrons, increase steric hindrance, inhibit The effect of the crystallization tendency

Active Publication Date: 2021-10-01
CHANGZHOU TRONLY EARLY OPTOELECTRONICS MATERIAL CO LTD
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a quinoxaline compound containing a triazine group, a quinoxaline composition, an electron transport material and an electroluminescence device, to solve the problem of high operating voltage of quinoxaline electron transport materials in the prior art

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  • Quinoxaline compound containing triazine group, quinoxaline composition, electron transport material and electroluminescent device
  • Quinoxaline compound containing triazine group, quinoxaline composition, electron transport material and electroluminescent device
  • Quinoxaline compound containing triazine group, quinoxaline composition, electron transport material and electroluminescent device

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[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] As analyzed in the background technology of the application, the working voltage of the quinoxaline electron transport materials in the prior art is relatively high. In order to solve this problem, the application provides a quinoxaline compound containing a triazine group, quinoxaline Oxaline-based composition, electron transport material and electroluminescent device.

[0038]In a typical embodiment of the present application, a quinoxaline compound containing a triazine group is provided, and the quinoxaline compound has the structure shown in the following general formula A:

[0039]

[0040] Among them, R 1 and R 2 same or different, each independently selected from C 1 ~C 4...

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Abstract

The invention provides a quinoxaline compound containing a triazine group, a quinoxaline composition, an electron transport material and an electroluminescent device. The quinoxaline compound has a structure as shown in a general formula A. In the general formula A, R1 and R2 are the same or different and are independently selected from any one of C1-C4 straight-chain alkyl groups or C1-C4 branched-chain alkyl groups, or R1 and R2 are different and one is selected from any one of C1-C4 straight-chain alkyl groups or C1-C4 branched-chain alkyl groups, and the other is selected from substituted or unsubstituted C6-C12 aryl groups; L is a 1, 3-phenylene group or a 1, 4-phenylene group; and Ar is selected from substituted or unsubstituted C6-C30 aryl groups. When the quinoxaline compound containing the triazine group is used as an electron transport material in an organic electroluminescent device, the working voltage of the device can be effectively reduced, and the luminous efficiency is improved.

Description

technical field [0001] The invention relates to the field of electron transport materials, in particular to a quinoxaline compound containing a triazine group, a quinoxaline composition, an electron transport material and an electroluminescent device. Background technique [0002] Organic light emitting diodes (organic light emitting diodes, OLED) have the advantages of lightness, thinness, self-luminescence, low power consumption, no backlight, wide viewing angle, fast response and flexibility, and have gradually replaced liquid crystal display panels to become a new generation flat panel display, and also has great potential in flexible display. The carrier mobility of traditional electron transport materials is one-thousandth of that of hole transport materials, and their thermal stability is not good, which often leads to the problem of rapid roll-off of luminous efficiency or poor device life. According to relevant literature, the charge consumption ratio of electron t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D403/10H01L51/54H01L51/50
CPCC07D403/10H10K85/626H10K85/654H10K85/6572H10K50/16Y02E10/549
Inventor 陈俊蓉孙霞王仁宗
Owner CHANGZHOU TRONLY EARLY OPTOELECTRONICS MATERIAL CO LTD
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