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학술지 Highly Efficient White Transparent Organic Light Emitting Diodes with Nano-Structured Substrate
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저자
주철웅, 신진욱, 문제현, 허진우, 조두희, 이종희, 박승구, 조남성, 한준한, 추혜용, 이정익
발행일
201602
출처
Organic Electronics, v.29, pp.72-78
ISSN
1566-1199
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.orgel.2015.11.016
협약과제
15PB1500, AMOLED TV용 soluble TFT 및 화소 형성 소재/공정 기술 개발, 이종희
초록
Enhancing outcoupling efficiency and stabilizing emission spectra are of high technical importance in realizing high quality white transparent organic light emitting diodes (TOLEDs). In this work, we demonstrate a random nano-scattering layer (RSL) as a structure which can effectively address those tasks. The RSL contributes to bottom and top emissions by scattering and reflection, respectively. With the use of RSL, we achieved remarkable total efficiency enhancement of 101%. Also, a viewing angle independent stable white spectrum with a color rendering index of 79 was achieved. With its straight forward processing, our RSL can be readily applied to deal with various photonic applications to enhance both efficiency and emission spectra.
키워드
Efficiency, Electroluminescence spectrum, Light extraction, Random scattering layer (RSL), Scattering effect, Transparent organic light emitting diode (TOLED)
KSP 제안 키워드
Color rendering index, Electroluminescence spectrum, Nano-structured, Organic light-emitting diodes(OLEDS), Scattering effect, Scattering layer, and reflection, angle independent, efficiency enhancement, emission spectra, highly efficient