A highly efficient OLED based on terbium complexes
文献类型：期刊论文
| 作者 | Chen, Zhuqi; Ding, Fei; Hao, Feng; Bian, Zuqiang; Ding, Bei; Zhu, Yezi; Chen, Fangfang; Huang, Chunhui |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 10期号:5页码:939-947 |
| 关键词 | Light-emitting Diodes Terbium Complex Efficiency Co-deposition |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2009.04.023 |
| 英文摘要 | A neutral ligand 9-(4-tert-butylphenyl)-3,6-bis(diphenylphosphineoxide)-carbazole (DPPOC) and its complex Tb(PMIP)(3)DPPOC (A, where PMIP stands for 1-phenyl-3-methyl-4-isobutyryl-5-pyrazolone) were synthesized. DPPOC has a suitable lowest triplet energy level (24,691 cm(-1)) for the sensitization of Tb(Ill) ((5)D(4): 20,400 cm(-1)) and a significantly higher thermal stability (glass transition temperature 137 degrees C) compared with the familiar ligand triphenylphosphine oxide (TPPO). Experiments revealed that the emission layer of the Tb(PMIP)(3)DPPOC film could be prepared by vacuum co-deposition of the complex Tb(PMIP)(3)(H(2)O)(2) (B) and DPPOC (molar ratio = 1:1). The electroluminescent (EL) device ITO/N,N'-diphenyl-N,N'-bis(1-naphthyl)-1,1'-diphenyl-4,4'-diamine (NPB; 10nm)/Tb(PMIP)(3) (20 nm)/co-deposited Tb(PMIP)(3)DPPOC (30 nm)/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP: 10nm)/tris(8-hydroxyquinoline) (AlQ; 20 nm)/Mg(0.9)Ag(0.1) (200 nm)/Ag (80 nm) exhibited pure emission from terbium ions, even at the highest current density. The highest efficiency obtained was 16.1 lm W(-1), 36.0 cd A(-1) at 6 V. At a practical brightness of 119 cd m(-2) (11V) the efficiency remained above 4.5 lm W(-1), 15.7 cd A(-1). These values are a significant improvement over the previously reported Tb(PMIP)(3)(TPPO)(2) (C). (C) 2009 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000268368400029 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67809]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Bian, Zuqiang |
| 作者单位 | Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Zhuqi,Ding, Fei,Hao, Feng,et al. A highly efficient OLED based on terbium complexes[J]. ORGANIC ELECTRONICS,2009,10(5):939-947. |
| APA | Chen, Zhuqi.,Ding, Fei.,Hao, Feng.,Bian, Zuqiang.,Ding, Bei.,...&Huang, Chunhui.(2009).A highly efficient OLED based on terbium complexes.ORGANIC ELECTRONICS,10(5),939-947. |
| MLA | Chen, Zhuqi,et al."A highly efficient OLED based on terbium complexes".ORGANIC ELECTRONICS 10.5(2009):939-947. |
入库方式： OAI收割
来源：化学研究所
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