Simple measurement of quantum efficiency in organic electroluminescent devices

被引:103
作者
Okamoto, S
Tanaka, K
Izumi, Y
Adachi, H
Yamaji, T
Suzuki, T
机构
[1] NHK Japan Broadcasting Corp, Setagaya Ku, Tokyo 1578510, Japan
[2] Tokyo Denki Univ, Dept Mat Sci & Engn, Chiyoda Ku, Tokyo 1018457, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2001年 / 40卷 / 7B期
关键词
electroluminescence; EL; quantum efficiency; external quantum efficiency; organic EL;
D O I
10.1143/JJAP.40.L783
中图分类号
O59 [应用物理学];
学科分类号
摘要
A simple method of measuring the external quantum efficiency of organic electroluminescent (EL) devices has been investigated. Assuming a perfectly diffusive EL emission surface, this method enables the external quantum efficiency to be calculated from the conventionally measured parameters: luminance, EL spectrum, and current. Its use is limited to EL emission in the visible wavelength range.
引用
收藏
页码:L783 / L784
页数:2
相关论文
共 7 条
[1]   Very high-efficiency green organic light-emitting devices based on electrophosphorescence [J].
Baldo, MA ;
Lamansky, S ;
Burrows, PE ;
Thompson, ME ;
Forrest, SR .
APPLIED PHYSICS LETTERS, 1999, 75 (01) :4-6
[2]  
BOYD RW, 1983, RADIOMETRY DETECTION, P13
[3]   Fabrication of highly efficient organic electroluminescent devices [J].
Kido, J ;
Iizumi, Y .
APPLIED PHYSICS LETTERS, 1998, 73 (19) :2721-2723
[4]   Absolute photoluminescence quantum yield of molecular organic thin films: Effects of doping with the strongly fluorescent rubrene [J].
Mattoussi, H ;
Murata, H ;
Merritt, CD ;
Kafafi, ZH .
ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES II, 1998, 3476 :49-60
[5]  
STUPP EH, 1999, PROJECTION DISPLAY 6, P339
[6]   High quantum efficiency in organic light-emitting devices with iridium-complex as a triplet emissive center [J].
Tsutsui, T ;
Yang, MJ ;
Yahiro, M ;
Nakamura, K ;
Watanabe, T ;
Tsuji, T ;
Fukuda, Y ;
Wakimoto, T ;
Miyaguchi, S .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1999, 38 (12B) :L1502-L1504
[7]   Spatial emission patterns in organic thin-film EL diodes [J].
Tsutsui, T ;
Yamamato, K .
ORGANIC LIGHT-EMITTING MATERIALS AND DEVICES II, 1998, 3476 :2-10