Fluorinated low band gap copolymer based on dithienosilole-benzothiadiazole for high-performance photovoltaic device
文献类型：期刊论文
| 作者 | Lv, Hongying1,2,3; Zhao, Xiaoli1,2; Li, Zidong1,2,3; Yang, Dalei1,2,3; Wang, Zhongliang1,4; Yang, Xiaoniu1,2 |
| 刊名 | POLYMER CHEMISTRY
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:21页码:6279-6286 |
| ISSN号 | 1759-9954 |
| DOI | 10.1039/c4py00758a |
| 英文摘要 | A new fluorinated low band gap copolymer, poly[(4,4'-bis(2-ethylhexyl)dithieno[3,2-b:2',3'-d]silole)-2,6-diyl-alt-4,7-(5-fluoro-2,1,3-benzothiadiazole)] (PDTSBT-F), was designed and synthesized. The introduction of fluorine atom to a classical low band gap copolymer (PDTSBT) has a little influence on the polymer absorption spectrum and band gap, which was 1.48 eV for PDTSBT-F. However, the HOMO level was lowered to -5.17 eV for PDTSBT-F, the film crystallinity was improved, and PDTSBT-F showed higher charge carrier mobility than its non-fluorinated analogue (PDTSBT). For the PDTSBT-F/PC71BM device, a J(sc) of 15.96 mA cm(-2), a V-oc of 0.70 V, and a FF of 0.60 were attained, resulting in a PCE of 6.70%. To the best of our knowledge, this is the highest value to date in devices based on copolymers with C-, Si- and Ge-bridged dithiophene as the electron-rich unit and benzothiadiazole derivatives as electron-deficient unit. A high PCE in combination with a wide absorption spectrum in the visible range could induce PDTSBT-F to be a potentially promising low band gap polymer for polymer solar cells. |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000342761200016 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52713]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao, Xiaoli |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, Polymer Composites Engn Lab, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Changchun Univ Technol, Changchun 130012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Hongying,Zhao, Xiaoli,Li, Zidong,et al. Fluorinated low band gap copolymer based on dithienosilole-benzothiadiazole for high-performance photovoltaic device[J]. POLYMER CHEMISTRY,2014,5(21):6279-6286. |
| APA | Lv, Hongying,Zhao, Xiaoli,Li, Zidong,Yang, Dalei,Wang, Zhongliang,&Yang, Xiaoniu.(2014).Fluorinated low band gap copolymer based on dithienosilole-benzothiadiazole for high-performance photovoltaic device.POLYMER CHEMISTRY,5(21),6279-6286. |
| MLA | Lv, Hongying,et al."Fluorinated low band gap copolymer based on dithienosilole-benzothiadiazole for high-performance photovoltaic device".POLYMER CHEMISTRY 5.21(2014):6279-6286. |
入库方式： OAI收割
来源：化学研究所
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