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학술지 Enhanced and Balanced Efficiency of White Bidirectional Organic Light-Emitting Diodes
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저자
이종희, 조현수, 고태욱, 윤창훈, Simone Hofmann, 이재현, 김용현, Bjorn Lussem, 이정익, Karl Leo, Malte C. Gather, 유승협
발행일
201311
출처
Optics Express, v.21 no.23, pp.28040-28047
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.21.028040
협약과제
13VB1900, 에너지 절감을 위한 7인치기준 2W급 환경적응 디스플레이 신모드 핵심 원천 기술 개발, 추혜용
초록
We report on the characteristics of enhanced and balanced whitelight emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs in both top and bottom direction and in reduced distortion of the electroluminescence spectrum. Furthermore, we find that by utilizing MC effects, the overall current efficiency can be improved by 26.2% compared to that of a conventional device. © 2013 Optical Society of America.
KSP 제안 키워드
Bi-directional, Electroluminescence spectrum, Hole transporting layer, Organic light-emitting diodes(OLEDS), Tin oxide anode, current efficiency, indium tin oxide(ITO), light output, light-emitting diode(LED), metal layer, micro-cavity