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, Hongying ; Zhao, Xiaoli ; Li, Zidong ; Yang,Dalei ; Wang,Zhongliang ; Yang,Xiaoniu |
| 刊名 | polymer chemistry
 |
| 出版日期 | 2014 |
| 卷号 | 5期号:21页码:6279-6286 |
| 关键词 | POLYMER SOLAR-CELLS OPEN-CIRCUIT VOLTAGE POWER CONVERSION EFFICIENCY RECOMBINATION BISADDUCT LAYER ATOM |
| 通讯作者 | zhao,xl |
| 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342761200016 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/53007]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 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：长春应用化学研究所
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