Efficient blue and bluish-green iridium phosphors: Fine-tuning emissions of FIrpic by halogen substitution on pyridine-containing ligands
文献类型：期刊论文
| 作者 | Fan, Cong1; Zhu, Liping2; Jiang, Bei1; Zhong, Cheng1; Ma, Dongge2; Qin, Jingui1; Yang, Chuluo1 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2013-12-01 |
| 卷号 | 14期号:12页码:3163-3171 |
| 关键词 | Halogen Atoms Iridium Compounds Hammett Parameters Phosphorescent Organic Light Emitting Diode |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2013.09.026 |
| 英文摘要 | Three new iridium compounds, 4-F-FIrpic, 4-Cl-FIrpic and 4-Br-FIrpic, were designed and synthesized by introducing the F, Cl and Br atoms to the 4-position of pyridine ring in the frame of sky-blue emitter, FIrpic. Adding F atom stabilizes the HOMO level of FIrpic but keeps the LUMO level of FIrpic almost unchanged, which consequently broadens the HOMO-LUMO gap of FIrpic and finely tunes the emission to 465 nm of 4-F-FIrpic from 470 nm of FIrpic. In contrast, introducing of Cl and Br atoms simultaneously lowers the HOMO and LUMO levels of FIrpic, which brings about the squeeze of HOMO-LUMO gap in FIrpic and makes the emissions of 4-Cl-FIrpic and 4-Br-FIrpic red-shift to 475 and 479 nm, respectively. The phosphorescent organic light-emitting devices using the three iridium compounds as dopants were fabricated with the following configuration: ITO/MoO3/TAPC/TCTA: dopants/Tm/LiF/Al. The device based on 4-F-FIrpic showed a blue emission with the Commission Internationale de L'Eclairage coordinate of (0.15, 0.28), and revealed rather high efficiencies, with maximum current efficiency of 29 cd A(-1), power efficiency of 29 lm W-1 and external quantum efficiency of 14.6%. (C) 2013 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000327146500003 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46733]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ma, Dongge |
| 作者单位 | 1.Wuhan Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fan, Cong,Zhu, Liping,Jiang, Bei,et al. Efficient blue and bluish-green iridium phosphors: Fine-tuning emissions of FIrpic by halogen substitution on pyridine-containing ligands[J]. ORGANIC ELECTRONICS,2013,14(12):3163-3171. |
| APA | Fan, Cong.,Zhu, Liping.,Jiang, Bei.,Zhong, Cheng.,Ma, Dongge.,...&Yang, Chuluo.(2013).Efficient blue and bluish-green iridium phosphors: Fine-tuning emissions of FIrpic by halogen substitution on pyridine-containing ligands.ORGANIC ELECTRONICS,14(12),3163-3171. |
| MLA | Fan, Cong,et al."Efficient blue and bluish-green iridium phosphors: Fine-tuning emissions of FIrpic by halogen substitution on pyridine-containing ligands".ORGANIC ELECTRONICS 14.12(2013):3163-3171. |
入库方式： OAI收割
来源：化学研究所
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