An efficient electron-transporting polymer for light-emitting diodes

被引：87

作者：

Dailey, S ^{[1
]}

Halim, M ^{[1
]}

Rebourt, E ^{[1
]}

Horsburgh, LE ^{[1
]}

Samuel, IDW ^{[1
]}

Monkman, AP ^{[1
]}

机构：

[1] Univ Durham, Dept Phys, Durham DH1 3LE, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1998年 / 10卷 / 23期

关键词：

D O I：

10.1088/0953-8984/10/23/017

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The efficient operation of polymer light-emitting diodes (LEDs) requires balanced injection and transport of electrons and holes. This has stimulated much research into suitable electron-injecting and transporting materials. We report the use of polypyridine as an efficient electron-transporting polymer. We have achieved much-improved LED performance by incorporating polypyridine as an electron-transporting layer in a poly(p-phenylene vinylene) (PPV) LED and optimizing layer thicknesses to balance transport of electrons and holes. The external quantum efficiency of these LEDs is 0.25%, 60 times greater than similar devices without the electron-transporting layer.

引用

页码：5171 / 5178

页数：8

共 24 条

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