Efficient white light-emitting diodes realized with new processable blends of conjugated polymers

被引：301

作者：

Tasch, S ^{[1
]}

List, EJW ^{[1
]}

Ekstrom, O ^{[1
]}

Graupner, W ^{[1
]}

Leising, G ^{[1
]}

Schlichting, P ^{[1
]}

Rohr, U ^{[1
]}

Geerts, Y ^{[1
]}

Scherf, U ^{[1
]}

Mullen, K ^{[1
]}

机构：

[1] MAX PLANCK INST POLYMER RES,D-55128 MAINZ,GERMANY

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 20期

关键词：

D O I：

10.1063/1.120205

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An alternative method for producing efficient white light-emitting polymer diodes based on a blend of two polymers is reported. The white light emission is composed of a broad blue emission of laddertype (polyparaphenylene) (m-LPPP) and a red-orange emission of a new polymer, poly(perylene-co-diethynylbenzene) (PPDB). The red-orange electroluminescence emission is promoted by an excitation energy and charge transfer from m-LPPP to the PPDB. A concentration of 0.05% PPDB in the polymer blend is required in order to obtain white light emission. By inserting an insulating material in the blend, so that a maximum external quantum efficiency of 1.2% is obtained. (C) 1997 American Institute of Physics.

引用

收藏

页码：2883 / 2885

页数：3

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