Efficient solution-processed yellow/orange phosphorescent OLEDs based on heteroleptic Ir(III) complexes with 2-(9,9-diethylfluorene-2-yl) pyridine main ligand and various ancillary ligands
文献类型：期刊论文
| 作者 | Liu, Xuejing1,2,3,4; Yao, Bing1,5; Wang, Hailong1,5; Zhang, Baohua1; Lin, Xingdong1,7; Zhao, Xiaofei1; Cheng, Yanxiang1; Xie, Zhiyuan1; Wong, Wai-Yeung2,3,4,6 |
| 刊名 | ORGANIC ELECTRONICS
 |
| 出版日期 | 2018-03-01 |
| 卷号 | 54页码:197-203 |
| 关键词 | Solution-processed Iridium Complex Yellow/orange Emission Organic Light-emitting Diode Ancillary Ligands |
| ISSN号 | 1566-1199 |
| DOI | 10.1016/j.orgel.2017.12.050 |
| 英文摘要 | Efficient solution-processible yellow/orange emissive phosphors are highly required in solution-processed phosphorescent organic light-emitting diodes (s-PhOLEDs). With respect to phenyl pyridine (ppy)-type Ir(III) complexes, 2-(9,9-diethylfluoren-2-yl) pyridine (Flpy)-type Ir(III) complexes have huge potential in yellow/orange s-PhOLEDs due to their extended conjugation and excellent solubility in common organic solvents. Herein, a new series of phosphorescent Ir(III) complexes, i. e. Ir(Flpy)(2)pic-NeO, Ir(Flpy-CF3)(2)pic-NeO, Ir(Flpy-CF3)(2)dbm and Ir(Flpy-CF3)(2)acac, based on Flpy main ligand and picolinic N-oxide (pic-NeO), acetylacetone (acac), and dibenzoyl methane (dbm) ancillary ligands are synthesized. The photophysical, electrochemical, and electroluminescent (EL) properties of these phosphorescent Ir(III) complexes are investigated in details. By introducing the CF3 group in Flpy ligand and varying the ancillary ligands, the emission spectra of these phosphorescent complexes are tuned in a large range with EL emission peaks from 544 nm to 588 nm. The s-PhOLEDs employing these phosphors show promising EL performance with maximum external quantum efficiency (EQE) from 15.4% to 23.7% and high power efficiency from 61.9 l m W-1 to 80.4 l m W-1. These highly efficient phosphorescent Ir (III) complexes may serve as ideal chromaticity components in solution-processed full-color displays and lighting devices. |
| 语种 | 英语 |
| WOS记录号 | WOS:000425977600028 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45593]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Baohua; Xie, Zhiyuan; Wong, Wai-Yeung |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China 2.Hong Kong Baptist Univ, Inst Mol Funct Mat, Waterloo Rd, Hong Kong, Hong Kong, Peoples R China 3.Hong Kong Baptist Univ, Dept Chem, Waterloo Rd, Hong Kong, Hong Kong, Peoples R China 4.Hong Kong Baptist Univ, Inst Adv Mat, Waterloo Rd, Hong Kong, Hong Kong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Hong Kong Polytech Univ, Dept Appl Biol & Chem Technol, Hong Kong, Hong Kong, Peoples R China 7.Changchun Univ Sci & Technol, Sch Sci, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xuejing,Yao, Bing,Wang, Hailong,et al. Efficient solution-processed yellow/orange phosphorescent OLEDs based on heteroleptic Ir(III) complexes with 2-(9,9-diethylfluorene-2-yl) pyridine main ligand and various ancillary ligands[J]. ORGANIC ELECTRONICS,2018,54:197-203. |
| APA | Liu, Xuejing.,Yao, Bing.,Wang, Hailong.,Zhang, Baohua.,Lin, Xingdong.,...&Wong, Wai-Yeung.(2018).Efficient solution-processed yellow/orange phosphorescent OLEDs based on heteroleptic Ir(III) complexes with 2-(9,9-diethylfluorene-2-yl) pyridine main ligand and various ancillary ligands.ORGANIC ELECTRONICS,54,197-203. |
| MLA | Liu, Xuejing,et al."Efficient solution-processed yellow/orange phosphorescent OLEDs based on heteroleptic Ir(III) complexes with 2-(9,9-diethylfluorene-2-yl) pyridine main ligand and various ancillary ligands".ORGANIC ELECTRONICS 54(2018):197-203. |
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来源：化学研究所
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