High-Efficiency Nondoped Deep-Blue-Emitting Organic Electroluminescent Device

被引：72

作者：

Tao, Silu ^{[1
,2
,3
]}

Zhou, Yechun ^{[2
,3
]}

Lee, Chun-Sing ^{[2
,3
]}

Zhang, Xiaohong ^{[4
,5
]}

Lee, Shuit-Tong ^{[2
,3
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China

[2] City Univ Hong Kong, COSDAF, Hong Kong, Hong Kong, Peoples R China

[3] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

[4] Chinese Acad Sci, Nanoorgan Photoelect Lab, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[5] Chinese Acad Sci, Key Lab Photochem Convers & Optoelect Mat, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2010年 / 22卷 / 06期

基金：

北京市自然科学基金;

关键词：

PHOSPHORESCENT EMISSION; ENERGY-TRANSFER; DIODES; HYBRIDS;

D O I：

10.1021/cm100100w

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new blue emitter, 9,9-bis-(3- (9-phenyl-carbazoyl))-2,7-dipryenylfluorene (DCDPF), has been synthesized and characterized. Organic light-emitting devices (OLEDs) using DCDPF as a non-doped emitter exhibits deep-blue emission with a peak at 458 nm and CIE coordinates of (0.15, 0.15). The maximum efficiency of the device is 4.4 cd/A (3.1 lm/W). The results suggest that the introduction of carbazole units at the 9-position of fluorene provides an effective way to suppress molecular aggregation which would cause red shift in emission.

引用

页码：2138 / 2141

页数：4

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