Binary solvent mixture-induced crystallization enhancement for a white emissive polyfluorene copolymer toward improving its electroluminescence
文献类型：期刊论文
| 作者 | Liu, Lihui; Wu, Keqi; Ding, Junqiao; Zhang, Baohua; Xie, Zhiyuan |
| 刊名 | POLYMER
 |
| 出版日期 | 2013-10-18 |
| 卷号 | 54期号:22页码:6236-6241 |
| 关键词 | White Polymer Light-emitting Diodes Polyfluorene Crystalline Morphology |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2013.08.069 |
| 英文摘要 | The morphology of fluorescent polyfluorene (PF) derivatives has strong effects on their electroluminescent (EL) performance. Herein, the influence of processing solvents on the morphology of PF-based white emissive polymer and its correlation to the EL behavior is studied. It is found that the PF copolymer films prepared from chlorobenzene:toluene (CB:TOL) solvent mixtures show stronger tendency to form crystalline alpha phase PF upon thermal annealing than those prepared from pure TOL or CB solvents. The evaporation rate difference in solvent mixtures can assist in the formation of crystal nucleus and enhance the crystallinity of PF backbone after thermal annealing. The results also reveal that the solvent mixture-processed fluorescent PF-based white emissive polymer not only shows more efficient blue emission, but also more balanced electron and hole transport. Accordingly, both the white emission purity and the light-emitting efficiency of the light-emitting diodes based on PF-based white emissive polymer are greatly enhanced. (C) 2013 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000326140700023 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46845]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhang, Baohua |
| 作者单位 | Chinese Acad Sci, Univ 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 | Liu, Lihui,Wu, Keqi,Ding, Junqiao,et al. Binary solvent mixture-induced crystallization enhancement for a white emissive polyfluorene copolymer toward improving its electroluminescence[J]. POLYMER,2013,54(22):6236-6241. |
| APA | Liu, Lihui,Wu, Keqi,Ding, Junqiao,Zhang, Baohua,&Xie, Zhiyuan.(2013).Binary solvent mixture-induced crystallization enhancement for a white emissive polyfluorene copolymer toward improving its electroluminescence.POLYMER,54(22),6236-6241. |
| MLA | Liu, Lihui,et al."Binary solvent mixture-induced crystallization enhancement for a white emissive polyfluorene copolymer toward improving its electroluminescence".POLYMER 54.22(2013):6236-6241. |
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来源：化学研究所
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