ETRI-Knowledge Sharing Plaform

ENGLISH

성과물

논문 검색
구분 SCI
연도 ~ 키워드

상세정보

학술지 Down-conversion Light Outcoupling Films using Imprinted Microlens Arrays for White Organic Light-emitting Diodes
Cited 23 time in scopus Download 7 time Share share facebook twitter linkedin kakaostory
저자
오지윤, 김진희, 서윤경, 주철웅, 이종희, 이정익, 유승건, 윤창훈, 강문희, 최범호, 김용현
발행일
201701
출처
Dyes and Pigments, v.136, pp.92-96
ISSN
0143-7208
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.dyepig.2016.08.017
협약과제
16PB1800, AMOLED TV용 soluble TFT 및 화소 형성 소재/공정 기술 개발, 이종희
초록
We have developed down-conversion outcoupling films to enhance the light outcoupling efficiency in white organic light-emitting diodes (OLEDs). The down-conversion outcoupling films consist of outcoupling structures and color conversion materials, which are prepared by a simple solution-based micro-imprint process and are adopted into OLEDs. The down-conversion films successfully realize white light by converting blue rays from blue phosphorescent OLED. The OLEDs based on the down-conversion films with outcoupling structures show a great improvement of power efficiency by a factor of 1.32 compared to the reference OLED based on down-conversion films without outcoupling structures. Furthermore, the influence of a concentration of color conversion materials on color rendering index of OLEDs is investigated. The results strongly indicate that readily fabricated down-conversion light outcoupling films by a simple micro-imprint process are highly promising for enhanced light extraction performance and high color rendering index of white OLEDs.
KSP 제안 키워드
Conversion material, Light outcoupling, Microlens array, Organic light-emitting diodes(OLEDS), Power Efficiency, White organic light-emitting diodes, blue phosphorescent OLED, color conversion, conversion films, down-conversion, high color rendering index