Methoxyl modification in furo[3,2-c]pyridine-based iridium complexes towards highly efficient green- and orange-emitting electrophosphorescent devices
文献类型：期刊论文
| 作者 | Yan, Zhimin1,2; Wang, Yanping3; Ding, Junqiao2; Wang, Yue1; Wang, Lixiang2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY C
 |
| 出版日期 | 2017-12-14 |
| 卷号 | 5期号:46页码:12221-12227 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c7tc04269h |
| 英文摘要 | Two new furo[3,2-c]pyridine-based Ir complexes, namely (4-MeOpfupy)(2)Ir(acac) and (3-MeOpfupy)(2)Ir(acac), were designed and synthesized by introducing a methoxyl group into the 4-and 3-positions of the phenyl ring on the C(sic)N ligand. It was found that the position of the methoxyl group has an important influence on the electrochemical and photophysical properties, as well as electrophosphorescent device performance. Compared with the reference complex (pfupy)(2)Ir(acac) without any methoxyl group (538 nm), (4-MeOpfupy)(2)Ir(acac) with a methoxyl group at the 4-position shows a blue-shifted emission peak at 523 nm originating from the methoxyl-induced enhancement of the LUMO level, whereas (3-MeOpfupy)(2)Ir(acac) with a methoxyl group at the 3-position shows a red-shifted emission peak at 602 nm originating from the methoxyli-nduced enhancement of the HOMO level. The corresponding PhOLEDs based on (4-MeOpfupy)(2)Ir(acac) and (3-MeOpfupy)(2)Ir(acac) realize highly efficient green and orange electroluminescence with CIE coordinates of (0.37, 0.60) and (0.60, 0.40), revealing a state-of-the-art EQE as high as 29.5% (100.7 cd A(-1)) and 16.7% (43.9 cd A(-1)), respectively. These impressive results indicate that methoxyl modification is a valid way to tune the molecular energy levels and emissive color for Ir complexes while not obviously sacrificing the final device performance. |
| 语种 | 英语 |
| WOS记录号 | WOS:000416540600029 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45109]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ding, Junqiao; Wang, Yue; Wang, Lixiang |
| 作者单位 | 1.Jilin Univ Changchun, State Key Lab Supramol Struct & Mat, Coll Chem, Changchun 130012, Jilin, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 3.Changchun Univ Sci & Technol, Sch Mat Sci & Engn, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Zhimin,Wang, Yanping,Ding, Junqiao,et al. Methoxyl modification in furo[3,2-c]pyridine-based iridium complexes towards highly efficient green- and orange-emitting electrophosphorescent devices[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017,5(46):12221-12227. |
| APA | Yan, Zhimin,Wang, Yanping,Ding, Junqiao,Wang, Yue,&Wang, Lixiang.(2017).Methoxyl modification in furo[3,2-c]pyridine-based iridium complexes towards highly efficient green- and orange-emitting electrophosphorescent devices.JOURNAL OF MATERIALS CHEMISTRY C,5(46),12221-12227. |
| MLA | Yan, Zhimin,et al."Methoxyl modification in furo[3,2-c]pyridine-based iridium complexes towards highly efficient green- and orange-emitting electrophosphorescent devices".JOURNAL OF MATERIALS CHEMISTRY C 5.46(2017):12221-12227. |
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来源：化学研究所
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