Neutral copper(I) phosphorescent complexes from their ionic counterparts with 2-(2 '-quinolyl)benzimidazole and phosphine mixed ligands
文献类型:期刊论文
作者 | Min, Junhui1,3; Zhang, Qisheng2; Sun, Wei1,3; Cheng, Yanxiang1,2; Wang, Lixiang1 |
刊名 | DALTON TRANSACTIONS
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出版日期 | 2011 |
卷号 | 40期号:3页码:686-693 |
ISSN号 | 1477-9226 |
DOI | 10.1039/c0dt01031f |
英文摘要 | Neutral mononuclear Cu-I complexes and their counterparts with counterion, i.e. Cu(qbm)(PPh3)(2), Cu(qbm)(DPEphos), [Cu(Hqbm)(PPh3)(2)](BF4) and [Cu(Hqbm)(DPEphos)](BF4), where Hqbm = 2-(2'-quinolyl) benzimidazole, DPEphos = bis[2-(diphenylphosphino)phenyl] ether, have been synthesized and characterized by X-ray structure analyses. All of the four complexes in solid state exhibit a strong phosphorescence band in the orange spectral region at room temperature. The photophysical properties of these complexes in both methylene chloride solution and poly(methyl methacrylate) film have been studied. Compared to the related cationic complexes, the neutral ones show blue-shifted emissions and longer lifetimes that can be attributed to the additional ligand-centered pi-pi* transition beside traditional metal-to-ligand charge-transfer (MLCT). By doping these complexes in N-(4-(carbazol-9-yl) phenyl)-3,6-bis(carbazol-9-yl) carbazole (TCCz), multilayer organic light-emitting diodes (OLEDs) were fabricated with the device structure of ITO/PEDOT/TCCz: Cu-I (10 wt%)/BCP/Alq(3)/LiF/Al. The neutral complex Cu(qbm)(DPEphos) exhibits a higher current efficiency, up to 8.87 cd A(-1), than that (5.58 cd A(-1)) of its counterpart [Cu(Hqbm)(DPEphos)](BF4). |
语种 | 英语 |
WOS记录号 | WOS:000285748800018 |
出版者 | ROYAL SOC CHEMISTRY |
源URL | [http://ir.iccas.ac.cn/handle/121111/73589] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Wang, Lixiang |
作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Min, Junhui,Zhang, Qisheng,Sun, Wei,et al. Neutral copper(I) phosphorescent complexes from their ionic counterparts with 2-(2 '-quinolyl)benzimidazole and phosphine mixed ligands[J]. DALTON TRANSACTIONS,2011,40(3):686-693. |
APA | Min, Junhui,Zhang, Qisheng,Sun, Wei,Cheng, Yanxiang,&Wang, Lixiang.(2011).Neutral copper(I) phosphorescent complexes from their ionic counterparts with 2-(2 '-quinolyl)benzimidazole and phosphine mixed ligands.DALTON TRANSACTIONS,40(3),686-693. |
MLA | Min, Junhui,et al."Neutral copper(I) phosphorescent complexes from their ionic counterparts with 2-(2 '-quinolyl)benzimidazole and phosphine mixed ligands".DALTON TRANSACTIONS 40.3(2011):686-693. |
入库方式: OAI收割
来源:化学研究所
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