Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2000.11c
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- Pages.437-439
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- 2000
The characteristics of the electroluminescent devices using Ir$(ppy)_3$
Ir$(ppy)_3$ 를 발광물질로 이용한 EL소자의 특성분석
- Kim, Jun-Ho (Dept. of Electrical and Control Eng. Hongik Univ.) ;
- Kim, Yun-Myoung (Dept. of Electrical and Control Eng. Hongik Univ.) ;
- Ha, Yun-Kyoung (Dept. of Chemical Eng. Hongik Univ.) ;
- Kim, Young-Kwan (Dept. of Chemical Eng. Hongik Univ.) ;
- Kim, Jung-Soo (Dept. of Electrical and Control Eng. Hongik Univ.)
- 김준호 (홍익대학교 전기제어공학과) ;
- 김윤명 (홍익대학교 전기제어공학과) ;
- 하윤경 (홍익대학교 화학공학과) ;
- 김영관 (홍익대학교 화학공학과) ;
- 김정수 (홍익대학교 전기제어공학과)
- Published : 2000.11.25
Abstract
The internal quantum efficiency of EL devices using fluorescent organic materials is limited within 25% because of the triplet excitons which can hardly emit light. So there has been considerable interest in finding ways to obtain light emission from triplet excitons. One approach has been to add phosphorescent compounds to one of the layers in an EL device. Then triplet excitons can transfer to these phosphorescent molecules and emit light. In this study, multilayer organic light-emitting devices with phosphorescent emitter, tris (2-phenylpyridine)iridium (
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