Novel starburst molecule as a hole injecting and transporting material for organic light-emitting devices

被引：111
|
作者：
Li, JY
Ma, CW
Tang, JX
Lee, CS
Lee, ST [1 ]
机构：
[1] City Univ Hong Kong, Ctr Super Diamond & Adv Films COSDAF, Hong Kong, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Math Sci, Hong Kong, Hong Kong, Peoples R China
来源：
CHEMISTRY OF MATERIALS | 2005年 / 17卷 / 03期
关键词：
D O I：
10.1021/cm048337d
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：
We report the synthesis of a novel starburst molecule, 4,4',4"-tris(N-3-methylphenyl-N-(9-ethylcarbazyl-3)amino) triphenylamine (PCATA), and its application in organic light-emitting devices (OLEDs). The introduction of PCATA into the standard NPB/Alq(3) OLED as the hole injecting and transporting layer dramatically enhanced the device efficiency to 5.7 cd/A and 2.2 lm/W, which are a factor of 2 higher than those of the standard OLED without the PCATA layer. The performance enhancement is attributed to a better balance of hole and electron injection in the PCATA-added OLED.
引用
收藏
页码：615 / 619
页数：5
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