Highly efficient white organic light-emitting diode

被引：197
作者：
Krummacher, BC
Choong, VE
Mathai, MK
Choulis, SA
So, F
Jermann, F
Fiedler, T
Zachau, M
机构：
[1] OSRAM Opto Semicond Inc, San Jose, CA 95134 USA
[2] OSRAM GmbH, R&D Dev Phosphors, D-81543 Munich, Germany
来源：
APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 11期
关键词：
D O I：
10.1063/1.2186080
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present a highly efficient white electroluminescence device by the combination of a solution processed blue organic phosphorescence light-emitting diode with appropriate down-conversion phosphor system. The use of this down-conversion system produced an extraordinary enhancement on device performance, resulting in a white electroluminescence device with luminance efficacy of 25 lm/W at luminance efficiency reaching 39 cd/A. The extraordinary enhancement on device performance is attributed to isotropic radiation pattern of the excited phosphor particles, leading to high light extraction properties. (c) 2006 American Institute of Physics.
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