White Electroluminescence from a Phosphonate-Functionalized Single-Polymer System with Electron-Trapping Effect

被引：64

作者：

Guo, Xin ^{[1
,2
]}

Qin, Chuanjiang ^{[1
,2
]}

Cheng, Yanxiang ^{[1
,2
]}

Xie, Zhiyuan ^{[1
,2
]}

Geng, Yanhou ^{[1
,2
]}

Jing, Xiabin ^{[1
,2
]}

Wang, Fosong ^{[1
,2
]}

Wang, Lixiang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

ADVANCED MATERIALS | 2009年 / 21卷 / 36期

基金：

中国国家自然科学基金;

关键词：

LIGHT-EMITTING-DIODES; SIMULTANEOUS 2-COLOR EMISSION; SIMULTANEOUS BLUE; POLYFLUORENE COPOLYMERS; MOLECULAR DESIGN; ENERGY-TRANSFER; MIXING SINGLET; EFFICIENT; DEVICES; GREEN;

D O I：

10.1002/adma.200803734

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel strategy for obtaining white electroluminescence (EL) is based on the mechanism of electron trapping on host. Phosphonate-functionalized polyfluorene is chosen as host owing to its strong electron affinity. Electrons are confined mostly by host pendants in the EL process, which suppresses charge transfer from host to dopant. White EL with CIE coordinates of (0.34,0.35) is achieved.

引用

页码：3682 / +

页数：8

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