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학술지 Towards Highly Efficient and Highly Transparent OLEDs: Advanced Considerations for Emission Zone Coupled with Capping Layer Design
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저자
정진, 조현수, 고태욱, 이종희, 김은혜, 이재호, 이정익, 유승협
발행일
201510
출처
Optics Express, v.23 no.21, pp.27306-27314
ISSN
1094-4087
출판사
Optical Society of America(OSA)
DOI
https://dx.doi.org/10.1364/OE.23.027306
협약과제
15PB1300, 그래핀 소재의 OLED 투명전극과 박막봉지 적용을 위한 기판 사이즈 5.5세대 이상의 그래핀 필름 및 OLED 소자/패널 기초 및 응용 기술 개발, 이정익
초록
Strategies to achieve efficient transparent organic light-emitting diodes (TrOLEDs) are presented. The emission zone position is carefully adjusted by monitoring the optical phase change upon reflection from the top electrode, which is significant when the thickness of the capping layer changes. With the proposed design strategy, external quantum efficiency and transmittance values as high as 15% and 80% are demonstrated simultaneously. The effect of surface plasmon polariton (SPP) loss from thin metal electrodes is also taken into account to correctly describe the full scaling behavior of the efficiency of TrOLEDs over key optical design parameters.
KSP 제안 키워드
Capping layer, Coupled with, External Quantum Efficiency, Layer design, Optical phase, Organic light-emitting diodes(OLEDS), Phase change, Scaling behavior, Surface plasmon(SP), design parameters, design strategy