Precise measurement of external quantum efficiency of organic light-emitting devices

被引：0
|
作者：
Tanaka, Isao [1 ]
Tokito, Shizuo [1 ]
机构：
[1] NHK Sci. and Tech. Res. Laboratories, Kinuta, Setagaya-ku, Tokyo 157-8510, Japan
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2004年 / 43卷 / 11 A期
关键词：
Charge coupled devices - Color - Electroluminescence - Integration - Light emitting diodes - Phosphorescence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We report on the direct measurement of the external quantum efficiency of electroluminescence of organic light-emitting devices with different emission colors and patterns using an integrating sphere and a highly sensitive charge-coupled device spectral analyzer. Using this direct-measurement method, precise external quantum efficiency can be obtained more easily and more quickly than using the conventional luminance-conversion method. This method is shown to be very useful for determining the external quantum efficiency of organic light-emitting devices.
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页码：7733 / 7736
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