Efficient cyano-containing electron-transporting polymers for light-emitting diodes

被引：51

作者：

Liu, MS ^{[1
]}

Jiang, XZ ^{[1
]}

Herguth, P ^{[1
]}

Jen, AKY ^{[1
]}

机构：

[1] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 11期

关键词：

D O I：

10.1021/cm010705f

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：

Two copolymers composed of 9,9-di-n-hexylfluorene and 2,5-dicyanobenzene (PF-CNP (3:1) and PF-CNP (1:1)) were synthesized via the Suzuki coupling reaction. By attaching two electron-withdrawing cyano groups onto the phenylene ring, the electron affinity and conduction of polyfluorenes are greatly enhanced. The device based on PF-CNP (3:1) has a low turn-on voltage (3.4 V), bright blue emission (5430 cd/m(2) at a bias voltage of 7.4 V), and a maximum external quantum efficiency of 0.50% due to both optimized electron affinity and conduction.

引用

页码：3820 / +

页数：4

共 17 条

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