Dithienosilole-bridged small molecules with different alkyl group substituents for organic solar cells exhibiting high open-circuit voltage
文献类型：期刊论文
| 作者 | 方俊锋，Wai-Yeung Wong，王行柱 ; Dandan Ye,ab Xiaodong Li,b Lei Yan,a Wenjun Zhang,b Zhao Hu,b Ying Liang,a Junfeng Fang,*b Wai-Yeung Wong*c and Xingzhu Wang*ad |
| 刊名 | J. Mater. Chem. A
 |
| 出版日期 | 2013-04-26 |
| 卷号 | 58期号:1页码:7622—7629 |
| 通讯作者 | 方俊锋，Wai-Yeung Wong，王行柱 |
| 合作状况 | 李雨桐 |
| 中文摘要 | Three new small organic molecules, I, II and III, consisting of dithienosilole as the central core, bithiophene bridge with different alkyl group substituents, and octyl cyanoacetate or dicyano unit as different end units, have been designed and synthesized. The thermal, optical, electrochemical and photovoltaic properties of these three compounds have been investigated. The solubility, absorption, energy levels and band gaps of these materials were effectively tuned by different alkyl groups substituted on the thiophene unit and/or different electron-withdrawing end groups. Bulk heterojunction solar cells with molecules I–III as electron donors and PC60BM ([6,6]-phenyl-C60-butyric acid methyl ester) as an election acceptor exhibited power conversion efficiencies of 3.27, 2.88 and 3.81% for I, II and III, respectively. All of these solar cells showed very high Voc values of 0.89–0.92 V, and the high Voc is consistent with the low-lying HOMO level of the donor. These compounds also have low LUMO levels which ensure effective charge transfer from the donor to the fullerene acceptor. The structure–photovoltaic property relationships of these donor materials were investigated and discussed. |
| 学科主题 | 有机光伏 |
| 原文出处 | SCI收录 |
| 公开日期 | 2013-12-16 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/9898]  |
| 专题 | 宁波材料技术与工程研究所_宁波所知识产出 |
| 推荐引用方式 GB/T 7714 | 方俊锋，Wai-Yeung Wong，王行柱,Dandan Ye,ab Xiaodong Li,b Lei Yan,a Wenjun Zhang,b Zhao Hu,b Ying Liang,a Junfeng Fang,*b Wai-Yeung Wong*c and Xingzhu Wang*ad. Dithienosilole-bridged small molecules with different alkyl group substituents for organic solar cells exhibiting high open-circuit voltage[J]. J. Mater. Chem. A,2013,58(1):7622—7629. |
| APA | 方俊锋，Wai-Yeung Wong，王行柱,&Dandan Ye,ab Xiaodong Li,b Lei Yan,a Wenjun Zhang,b Zhao Hu,b Ying Liang,a Junfeng Fang,*b Wai-Yeung Wong*c and Xingzhu Wang*ad.(2013).Dithienosilole-bridged small molecules with different alkyl group substituents for organic solar cells exhibiting high open-circuit voltage.J. Mater. Chem. A,58(1),7622—7629. |
| MLA | 方俊锋，Wai-Yeung Wong，王行柱,et al."Dithienosilole-bridged small molecules with different alkyl group substituents for organic solar cells exhibiting high open-circuit voltage".J. Mater. Chem. A 58.1(2013):7622—7629. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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