Organic light-emitting devices for illumination quality white light

被引：233

作者：

Duggal, AR ^{[1
]}

Shiang, JJ ^{[1
]}

Heller, CM ^{[1
]}

Foust, DF ^{[1
]}

机构：

[1] Gen Elect Global Res Ctr, Niskayuna, NY 12309 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 19期

关键词：

Blue organic light emitting diodes - Color temperatures - Electrical-to-optical - High quantum efficiency - Lighting applications - Modeling devices - Organic light-emitting devices - Phosphor materials;

D O I：

10.1063/1.1478786

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A method of generating white light by combining a blue organic light-emitting diode with a down-conversion phosphor system is presented. It is demonstrated that the use of the down-conversion phosphor system actually leads to an overall power efficiency increase, an effect attributed to the high quantum efficiency of phosphor materials and the presence of light scattering in the phosphor layers. It is also shown that this approach permits the generation of illumination quality white light over the full range of color temperatures required for lighting applications. For the model device demonstrated in this work, an overall electrical to optical power conversion efficiency of 1.3% was achieved at a brightness of 1080 cd/m(2). (C) 2002 American Institute of Physics.

引用

页码：3470 / 3472

页数：3

共 9 条

[1] The promise and challenge of solid-state lighting [J].