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학술지 Color Temperature Tunable White Organic Light-Emitting Diodes
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저자
주철웅, 문제현, 한준한, 허진우, 이종희, 조남성, 황주현, 추혜용, 이정익
발행일
201401
출처
Organic Electronics, v.15 no.1, pp.189-195
ISSN
1566-1199
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.orgel.2013.10.005
협약과제
12MB1500, 환경/감성형 OLED 면조명 기술, 추혜용
초록
In this work, we demonstrated color-tunable white organic light-emitting diodes by stacking upper orange transparent and lower blue bottom emission organic light-emitting diodes (OLEDs). By independently operating each OLED, it was possible to tune the color temperature in a range of 1500-10,000 K, which covers the full Planckian locus in the 1931 CIE space. In designing stable and efficient OLEDs, in addition to the electrical characteristics, the importance of internal microcavity was emphasized and implemented. In fabricating the upper transparent OLED, special attention was paid to the capping layer for enhancing the emission. Our results presented a general guideline that is practically useful in designing high-performance color-tunable OLEDs with transparent OLEDs. © 2013 Elsevier B.V. All rights reserved.
키워드
Capping layer (CL), Color tunable organic light-emitting diodes, External quantum efficiency (EQE), Luminance efficiency (LE), Transparent OLEDs
KSP 제안 키워드
Capping layer, Color temperature, Color tunable, External Quantum Efficiency, High performance, Luminance efficiency, Organic light-emitting diodes(OLEDS), Tunable White, White organic light-emitting diodes, electrical characteristics, light-emitting diode(LED)