상세정보
학술지
Improvements of Phosphorescent White OLEDs Performance for Lighting Application
- 발행일
- 200810
- 출처
- Journal of Nanoscience and Nanotechnology, v.8 no.10, pp.5185-5187
- ISSN
- 1533-4880
- 출판사
- American Scientific Publishers (ASP)
- 협약과제
- 06IB2300, 고효율 백색 OLED 소자 기술 개발, 추혜용
- 초록
- We developed white OLED device with high power efficiency, in which blue and orange phosphorescent emitters were used. By introduction of multi-functional interlayer which has partial doping of orange dopant inside EBL, we report WOLEDs with peak external efficiencies up to (14.1% EQE, 31.3 Im/W) without light out-coupling technique. At 1000 cd/m 2, the performance achieved was 11.9% EQE, 18.7 Im/W with CIE = (0.39, 0.44). We also found that WOLED performances are related with doping ratio of the orange dopant that was inserted inside EBL. Copyright © 2008 American Scientific Publishers All rights reserved.
- KSP 제안 키워드
- Coupling technique, Doping ratio, Functional interlayer, Light outcoupling, Partial doping, Phosphorescent emitter, high power efficiency, multi-functional, white OLEDs