Red phosphorescent iridium complex containing carbazole-functionalized beta-diketonate for highly efficient nondoped organic light-emitting diodes
文献类型：期刊论文
| 作者 | Liu, Zhiwei; Guan, Min; Bian, Zuqiang; Nie, Daobo; Gong, Zeliang; Li, Zhaobo; Huang, Chunhui |
| 刊名 | ADVANCED FUNCTIONAL MATERIALS
 |
| 出版日期 | 2006-07-21 |
| 卷号 | 16期号:11页码:1441-1448 |
| ISSN号 | 1616-301X |
| DOI | 10.1002/adfm.200600099 |
| 英文摘要 | A novel red phosphorescent iridium, complex containing a carbazole-functionalized beta-diketonate, Ir(DBQ)(2)(CBDK) (bis(dibenzo[f,h]quinoxalinato-N, C-2) iridium (1-(carbazol-9-yl)-5,5-dimethylhexane-2,4-diketonate)) is designed, synthesized, and characterized. The electrophosphorescence properties of a nondoped device using the title complex as an emitter with a device configuration of indium tin oxide (ITO)/N,N'-diphenyl-N,N'-bis(1-naphthyl)-1,1'-diphenyl-4,4'-diamine (NPB; 20 nm)/iridium complex (20 nm)/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP; 5 nm)/tris(8-hydroxyquinoline) (AlO; 30 nm)/ Mg0.9Ag0.1 (200 nm)/Ag (80 nm) are examined. The results show that the nondoped device achieves a maximum lumen efficiency as high as 3.49 lm W-1. To understand this excellent result observed, two reference complexes Ir(DBQ)(2)(acac), where acac is the acetyl acetonate anion, and Ir(DBQ)(2)(FBDK), [bis(dibenzo[f,h]quinoxalinato-N,C-2) iridium (1-(9-methyl-fluoren-9-yl)-6,6-dimethylheptane-3,5-diketonate)], have also been synthesized, and as emitters they were examined under the same device configuration. The maximum lumen efficiency of the former compound is found to be 0.26 lm W-1 while that for the latter is 0.37 lm W-4, suggesting that the excellent performance of Ir(DBQ)(2)(CBDK) can be attributed mainly to an improved hole-transporting property that benefits the exciton transport. In addition, a bulky diketonate group separates the emitter centers from each other, which is also important for organic light-emitting diodes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239543000007 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/58401]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Zhiwei |
| 作者单位 | Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, BNLMS, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zhiwei,Guan, Min,Bian, Zuqiang,et al. Red phosphorescent iridium complex containing carbazole-functionalized beta-diketonate for highly efficient nondoped organic light-emitting diodes[J]. ADVANCED FUNCTIONAL MATERIALS,2006,16(11):1441-1448. |
| APA | Liu, Zhiwei.,Guan, Min.,Bian, Zuqiang.,Nie, Daobo.,Gong, Zeliang.,...&Huang, Chunhui.(2006).Red phosphorescent iridium complex containing carbazole-functionalized beta-diketonate for highly efficient nondoped organic light-emitting diodes.ADVANCED FUNCTIONAL MATERIALS,16(11),1441-1448. |
| MLA | Liu, Zhiwei,et al."Red phosphorescent iridium complex containing carbazole-functionalized beta-diketonate for highly efficient nondoped organic light-emitting diodes".ADVANCED FUNCTIONAL MATERIALS 16.11(2006):1441-1448. |
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来源：化学研究所
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