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Deep blue phosphorescent organic light-emitting diodes with excellent external quantum efficiency
- Park, Jungeun;
- Oh, Hankook;
- Oh, Sihyun;
- Kim, Jinho;
- Park, Hyun Jin;
- ... Kang, Youngjin;
- 외 2명
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27Citations
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29초록
Highly efficient deep blue phosphorescent organic light-emitting diodes (PHOLEDs) using two heteroleptic iridium compounds, (dfpypy)(2)Ir(acac) and (dfpypy)(2)Ir(dpm), as a dopant and 9-(3-(9H-carbazol-9-yl) phenyl)-9H-carbazol-3-yl) diphenylphosphine oxide as a host material have been developed. The electroluminescent device of (dfpypy)(2)Ir(dpm) at the doping level of 3 wt% shows the best performance with external quantum efficiency of 18.5-20.4% at the brightness of 100-1000 cd/m(2) and the color coordinate of (0.14, 0.18) at 1000 cd/m(2). (C) 2013 Elsevier B.V. All rights reserved.
키워드
Phosphorescent organic light-emitting diodes (PHOLEDs); Heteroleptic iridium(III) complex; Deep-blue triplet emitter; External quantum efficiency; ENERGY-GAP; DEVICES; ELECTRON; ELECTROPHOSPHORESCENCE
- 제목
- Deep blue phosphorescent organic light-emitting diodes with excellent external quantum efficiency
- 저자
- Park, Jungeun; Oh, Hankook; Oh, Sihyun; Kim, Jinho; Park, Hyun Jin; Kim, Oh Young; Lee, Jun Yeob; Kang, Youngjin
- 발행일
- 2013-12
- 유형
- Article
- 권
- 14
- 호
- 12
- 페이지
- 3228 ~ 3233
- 언어
- ENG
- 출판사
- ELSEVIER SCIENCE BV
- 발행국가
- 네덜란드
- 분량
- 6 페이지
- ISSN
- E 1878-5530
P 1566-1199