Synthesis and optoelectronic properties of novel fluorene-bridged dinuclear cyclometalated iridium (III) complex with A-D-A framework in the single-emissive-layer WOLEDs
文献类型：期刊论文
| 作者 | He, Keqi1; Wang, Xiangdong1; Yu, Junting1; Jiang, Haigang1; Xie, Guangshan1; Tan, Hua1; Liu, Yu1; Ma, Dongge2; Wang, Yafei1; Zhu, Weiguo1 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2014-11-01 |
| 卷号 | 15期号:11页码:2942-2949 |
| 关键词 | Electrophosphorescence Dinuclear Iridium (Iii) Complex Woleds |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2014.08.014 |
| 英文摘要 | To explore the influence of push-pull chromophores on properties of emitter in organic light-emitting devices (OLEDs), an acceptor-donor-acceptor (A-D-A)-based dinuclear iridium (III) complex of (dfppy)(4)Ir-2(dipic-FL) was synthesized via Suzuki coupling reaction, in which dfppy is 2-(2,4-difluorophenyl)pyridine and dipic-FL is 2,7-di(5-pyridyl-2-carboxyl)-9,9-dioctyl-9H-fluorene. An intense emission peak at about 480 nm resulting from the (dfppy)(2)Ir(pic) chromophore and a weak long-wavelength emission band at 580-660 nm attributed to intramolecular charge transfer transition were exhibited for (dfppy)(4-)Ir-2(dipic-FL) in dichloromethane solution. But a remarkably hypsochromic photoluminescence profile with an intense characteristical emission peak at 422 nm was observed, which is attributed to the intraligand (IL) pi-pi* excited states in its thin film. White emission with a maximum luminance of 1040 cd/m(2) and current efficiency of 1.2 cd/A was obtained in its single-emissive-layer (SEL) OLEDs with a configuration of ITO/PEDOT:PSS/(dfppy)(4)Ir-2(dipic-FL) (10 wt%):TCTA/TPBi/LiF/Al. To our knowledge, this is one of the best examples in term of dinuclear iridium complex as single dopant in the high-performance white-emitting SEL-OLEDs. (C) 2014 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000344424500040 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51769]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Ma, Dongge |
| 作者单位 | 1.Xiangtan Univ, Minist Educ, Coll Chem, Key Lab Environm Friendly Chem & Applicat, Xiangtan 411105, Peoples R China 2.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Grad Univ, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Keqi,Wang, Xiangdong,Yu, Junting,et al. Synthesis and optoelectronic properties of novel fluorene-bridged dinuclear cyclometalated iridium (III) complex with A-D-A framework in the single-emissive-layer WOLEDs[J]. ORGANIC ELECTRONICS,2014,15(11):2942-2949. |
| APA | He, Keqi.,Wang, Xiangdong.,Yu, Junting.,Jiang, Haigang.,Xie, Guangshan.,...&Zhu, Weiguo.(2014).Synthesis and optoelectronic properties of novel fluorene-bridged dinuclear cyclometalated iridium (III) complex with A-D-A framework in the single-emissive-layer WOLEDs.ORGANIC ELECTRONICS,15(11),2942-2949. |
| MLA | He, Keqi,et al."Synthesis and optoelectronic properties of novel fluorene-bridged dinuclear cyclometalated iridium (III) complex with A-D-A framework in the single-emissive-layer WOLEDs".ORGANIC ELECTRONICS 15.11(2014):2942-2949. |
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来源：化学研究所
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