Title:
ORGANIC LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/166096
Kind Code:
A1
Abstract:
An organic light-emitting device and a method for manufacturing same. The organic light-emitting device comprises, from bottom to top: a substrate, an anode layer (10), a hole injection layer (20), a hole transport layer (30), an exciton blocking layer (40), an organic light-emitting layer (50), an electron transport layer (60), an electron injection layer (70), and a cathode layer (80). The material of the organic light-emitting layer comprises a benzimidazole derivative represented by formula 1. In formula 1, P1, P2, and P3 are benzene rings; at least one of R1-R12 is a substituent having a hole transport capability. The benzimidazole derivative has a simple structure and a high triplet level with respect to the host material substituted with bicarbazole, and can achieve effective energy transfer of a triplet exciton from a host to an object.
Inventors:
PAN BIAO (CN)
Application Number:
PCT/CN2017/089607
Publication Date:
September 20, 2018
Filing Date:
June 22, 2017
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD (CN)
International Classes:
H01L51/50; C09K11/06; H01L51/54; H01L51/56
Foreign References:
| CN103804301A | 2014-05-21 | |||
| CN103804360A | 2014-05-21 |
Attorney, Agent or Firm:
MING & YUE INTELLECTUAL PROPERTY LAW FIRM (CN)
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