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High Efficiency Phosphorescent Blue Organic Light-Emitting Diodes Using Double Emitting Layer
- Park, Jung Sun;
- Seo, Ji Hoon;
- Koo, Ja Ryong;
- Seo, Bo Min;
- Lee, Kum Hee;
- ... Kim, Young Kwan;
- 외 1명
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5초록
We have demonstrated a highly efficient blue phosphorescent organic light emitting diodes (PHOLED) using iridium (III) bis[(4,6-di-fluoropheny)-pyridinato-N,C2] picolinate doped in double emitting layers (D-EML), N,N'-dicarbazolyl-3,5-benzene (mCP) and p-bis (triphenylsilyly)benzene (UGH2). D-EML layers were employed to broaden the exciton formation zone and confine excitons. The optimized blue PHOLEDs having mCP/UGH2 as D-EML with a thickness of 200/100 angstrom, exhibited a peak external quantum efficiency of 11.44%, power efficiency of 16.8 Im/W, luminous efficiency of 23.14 cd/A, and Commission Internationale de l'Eclairage coordinates of (0.17, 0.33).
키워드
Blue Phosphorescent Organic Light Emitting Diodes; Double Emitting Layers; DEVICES
- 제목
- High Efficiency Phosphorescent Blue Organic Light-Emitting Diodes Using Double Emitting Layer
- 저자
- Park, Jung Sun; Seo, Ji Hoon; Koo, Ja Ryong; Seo, Bo Min; Lee, Kum Hee; Yoon, Seung Soo; Kim, Young Kwan
- 발행일
- 2011-05
- 유형
- Article; Proceedings Paper
- 권
- 11
- 호
- 5
- 페이지
- 4488 ~ 4491
- 언어
- ENG
- 출판사
- AMER SCIENTIFIC PUBLISHERS
- 발행국가
- 미국
- 분량
- 4 페이지
- ISSN
- E 1533-4899
P 1533-4880