Iridium complex containing benzimidazole structure and application thereof

A technology of benzimidazole and iridium complexes, applied in the field of organic electroluminescence display, can solve the problems of poor stability and life, hindering commercialization, and low phosphorescence efficiency.
CN112321647AActive Publication Date: 2021-02-05北京燕化集联光电技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
北京燕化集联光电技术有限公司
Publication Date
2021-02-05

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Abstract

The invention relates to the technical field of organic electroluminescent display, particularly discloses a novel iridium complex containing a benzimidazole structure, and also discloses applicationof the iridium complex in an organic electroluminescent device. The iridium complex containing a benzimidazole structure provided by the invention has a structure as shown in a general formula (I). The iridium complex containing a benzimidazole structure is applied to an organic electroluminescent device as an organic electrophosphorescent material, and the prepared electroluminescent device showsexcellent performances of high purity, high brightness and high efficiency.
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Description

technical field

[0001] The invention relates to the technical field of organic electroluminescent display, specifically discloses a novel iridium complex containing a benzimidazole structure, and also discloses its application in organic electroluminescent devices (OLEDs). Background technique

[0002] Electroluminescent display devices can be divided into inorganic electroluminescent display devices and organic electroluminescent display devices according to the difference in the constituent materials of the light-emitting layer. Compared with inorganic electroluminescent display devices, organic electroluminescent display devices have incomparable advantages, such as full-color emission in the visible spectrum range, extremely high brightness, extremely low driving voltage, fast response time, and simple fabrication. craft etc.

[0003] The research on organic electroluminescence started in the 1860s. Pope realized electroluminescence on anthracene single crystal for the ...

Claims

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