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학술지 Improved Device Performances in Phosphorescent Organic Light-Emitting Diodes by Microcavity Effects
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저자
주철웅, 문제현, 황주현, 한준한, 신진욱, 조두희, 허진우, 추혜용, 이정익
발행일
201209
출처
Japanese Journal of Applied Physics, v.51 no.9S2, pp.1-4
ISSN
0021-4922
출판사
Japan Society of Applied Physics (JSAP),
DOI
https://dx.doi.org/10.1143/JJAP.51.09MH01
협약과제
12MB1500, 환경/감성형 OLED 면조명 기술, 추혜용
초록
In order to improve the external quantum efficiency of organic light-emitting diodes (OLEDs), we purpose an anode which has a structure of indium tin oxide (ITO)/Ag/ITO, in which the Ag layer has a function of micro-cavity inducing reflector. In order to maximize the microcavity effect the thicknesses of the hole transport layers of blue and red phosphorescent OLEDs (PhOLEDs) were deduced using simulations. By the use of our optically designed anode, it was possible to achieve approximately 50% improvements in the external quantum efficiency.
KSP 제안 키워드
Ag layer, External Quantum Efficiency, Microcavity effect, Organic light-emitting diodes(OLEDS), Red phosphorescent, hole transport layer, indium tin oxide(ITO), light-emitting diode(LED), phosphorescent OLED, phosphorescent organic light-emitting diodes