Efficient and Long Lifetime Blue Light Material Based on Anthracene[2,3-b]benzofuran Framework

被引：0

作者：

Wang X. ^{[1
]}

Sun J. ^{[1
]}

Yuan J. ^{[1
]}

Zhang H. ^{[1
]}

Mao T. ^{[1
]}

Wang C. ^{[1
]}

He H. ^{[1
]}

Tian M. ^{[1
]}

Liu K. ^{[1
]}

Yang D. ^{[1
]}

Li J. ^{[1
]}

机构：

[1] Xi'an Manareco New Materials Co. ,Ltd., Xi'an

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2024年 / 45卷 / 01期

关键词：

anthracene[2,3-b]benzofuran; blue light; fluorescent material; organic electroluminescence;

D O I：

10.37188/CJL.20230255

中图分类号：

学科分类号：

摘要：

A novel compound with anthracene[2,3-b]benzofuran as the core was designed and synthesized,and the compound was obtained by modification with the donor carbazole group as 2-(anthracene[2,3-b]benzofuran-3-yl)-9-phenyl-9H-carbazole(ABPCz). Studies of doped devices show that,ABPCz can realize blue light emission,the maximum current efficiency of 8. 79 cd/A and the maximum external quantum efficiency(EQEmax)of 7. 8%. The peak spectrum is 448 nm,and there is a strong shoulder at 476 nm,as well as a Commission Internationale de l' Eclairage(CIE)coordinate of(0. 17,0. 23). The test device LT90(brightness decays to 90% of the initial bright⁃ ness)has a lifetime of 153 h at an initial brightness of 1 000 cd/m2. The results show that anthracene[2,3-b]benzofu⁃ ran can be modified with carbazole groups to obtain high-efficiency and long-life blue-light devices,which provide a new direction for the design and development of high-performance blue-light materials. © 2024 Chines Academy of Sciences. All rights reserved.

引用

页码：86 / 93

页数：7

共 30 条

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