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학술지 Stabilizing Color Shift of Tandem White Organic Light-emitting Diodes
Cited 13 time in scopus Download 19 time Share share facebook twitter linkedin kakaostory
저자
조현수, 송진욱, 권병화, 최수경, 이현구, 주철웅, 안성덕, 강승열, 유승협, 문제현
발행일
201901
출처
Journal of Industrial and Engineering Chemistry, v.69, pp.414-421
ISSN
1226-086X
출판사
한국공업화학회
DOI
https://dx.doi.org/10.1016/j.jiec.2018.10.006
협약과제
19HB1500, 디스플레이 일체형 투명 틀렉서블 복합 생체인식 디바이스 핵심기술 개발, 안성덕
초록
One drawback of white organic light-emitting diodes (WOLEDs) is the white angular dependence (WAD). Aimed to suppress the WAD of tandem WOLED to a negligible degree, we investigated the effect of optical resonance and probed various scattering structures. In a two-tandem configuration, the emissive layer physically remote from the reflective metal electrode is causing detrimental WAD. By combining an external nanoparticle based volumetric scattering film and an internal random nanostructure, it was possible to suppress the WAD of tandem WOLED to a value as low as 0.005, which is indistinguishable to human eyes.
키워드
Color stability, Optical resonance, Organic light emitting diodes, Scattering structure, Tandem structure, White angular dependence, White light source, White organic light-emitting diode
KSP 제안 키워드
Color stability, Organic light-emitting diodes(OLEDS), Scattering film, Tandem structure, White organic light-emitting diodes, angular dependence, emissive layer(EL), light-emitting diode(LED), metal electrode, optical resonance, tandem configuration