Highly efficient single-layer organic light-emitting devices using cationic iridium complex as host
文献类型：期刊论文
| 作者 | Chen, Bing1; Li, Yanhu2; Chu, Yueying1,3; Zheng, Anmin1; Feng, Jiwen1; Liu, Zhitian4; Wu, Hongbin2; Yang, Wei2 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 14期号:3页码:744-753 |
| 关键词 | Organic light-emitting devices Phosphorescent Ir complex Ionic Ir complex Ir complexes host-guest system |
| 英文摘要 | Highly efficient single-layer organic light-emitting devices (OLEDs) based on blended cationic Ir complexes as emitting layer have been demonstrated using narrow band gap cationic Ir complex [Ir(Meppy)(2)(pybm)](PF6) (C1) as guest and wide band gap cationic Ir complex [Ir(dfppy)(2)(tzpy-cn)](PF6) (C2) as host. As compared with single cationic Ir complex emitting layer, these host-guest systems exhibit highly enhanced efficiencies, with maximum luminous efficiency of 25.7 cd/A, external quantum efficiency of 8.6%, which are nearly 3-folds of those of pure C1-based device. Compared with a multilayer host-free device containing C1 as emitting layer and TPBI as electron-transporting and hole-blocking layer, the above single-layer devices also show 2-folds enhancement efficiencies. The high efficiencies achieved in these host-guest systems are among the highest values reported for ionic Ir complexes-based solid-state light-emitting devices. In addition, a white-similar emission with CIE of (0.36, 0.47) has also been achieved with luminous efficiency of 4.2 cd/A as the C1 concentration is 0.1 wt.%. The results demonstrate that the ionic Ir complexes-based host-guest system provides a new approach to achieve highly efficient OLEDs upon single-layer device structure and solution-processing technique. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | TRANSITION-METAL-COMPLEXES ; PROCESSED BLUE-GREEN ; ELECTROCHEMICAL-CELLS ; ELECTROLUMINESCENT DEVICES ; PHOSPHORESCENT EMITTERS ; CHARGE INJECTION ; SIDE-CHAINS ; DIODES ; POLYMER ; RED |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316660200006 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/804]  |
| 专题 | 武汉物理与数学研究所_磁共振应用研究部 |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan Ctr Magnet Resonance, Wuhan 430071, Peoples R China 2.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Key Lab Special Funct Mat, Minist Educ, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 4.Wuhan Inst Technol, Sch Mat Sci & Engn, Wuhan 430073, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Bing,Li, Yanhu,Chu, Yueying,et al. Highly efficient single-layer organic light-emitting devices using cationic iridium complex as host[J]. ORGANIC ELECTRONICS,2013,14(3):744-753. |
| APA | Chen, Bing.,Li, Yanhu.,Chu, Yueying.,Zheng, Anmin.,Feng, Jiwen.,...&Yang, Wei.(2013).Highly efficient single-layer organic light-emitting devices using cationic iridium complex as host.ORGANIC ELECTRONICS,14(3),744-753. |
| MLA | Chen, Bing,et al."Highly efficient single-layer organic light-emitting devices using cationic iridium complex as host".ORGANIC ELECTRONICS 14.3(2013):744-753. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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