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학술지 Extracting Internal Modes of Top Emission Organic Light Emitting Diodes by Using Internal Random Mesoscopic Wrinkles
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저자
정종찬, 우기영, 조현수, 조영훈, 조남성, 양성윤, 문제현
발행일
202104
출처
Journal of Industrial and Engineering Chemistry, v.96, pp.163-168
ISSN
1226-086X
출판사
한국공업화학회
DOI
https://dx.doi.org/10.1016/j.jiec.2021.01.025
협약과제
21ZB1200, ICT 소재·부품·장비 자립기술 및 도전기술 개발, 황치선
초록
Angular electroluminescence spectra stabilized and efficiency enhanced top-emitting organic light-emitting devices (TOLEDs) were demonstrated using randomly distributed mesoscopic internal wrinkles. Compared to planar TOLEDs, wrinkled TOLEDs showed a faster exciton decay rate in the emissive layer and high rate of radiative recombination, which leads to enhanced efficiency. Our wrinkled TOLEDs showed angular spectral dependency (u?쾤??(罐)) of 0.0032, which is low enough to be imperceptible to the human eyes, and 38.7 % enhanced external quantum efficiency relative to the planar counterpart. The approach described here provides an effective scheme for improving TOLEDs and obviating the necessity of modifying the stack structure of the device.
키워드
Light extraction, Mesoscopic wrinkle, Spectrum stability, Top emitting organic light emitting diode
KSP 제안 키워드
Electroluminescence spectra, External Quantum Efficiency, High rate, Organic light-emitting device(OLED), Organic light-emitting diodes(OLEDS), Radiative recombination, Stack structure, Top emission, decay rate, emissive layer(EL), enhanced efficiency
본 저작물은 크리에이티브 커먼즈 저작자 표시 - 비영리 - 변경금지 (CC BY NC ND) 조건에 따라 이용할 수 있습니다.
저작자 표시 - 비영리 - 변경금지 (CC BY NC ND)