Effect of dihedral angle of bridge unit on the performance of dye-sensitized solar cell |
| |
| Authors: | Yun Wua Xin Li |
| |
| Affiliation: | a School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China;b Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, SE-10691 Stockholm, Sweden;c Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China |
| |
| Abstract: | In this work, we investigated the impact of bridge unit on their photo-physical and photovoltaic performance. Increased planarity of the dyes effectively extended the absorption, but reduces the efficiency. Interestingly we found that dyes with a thiophene conjugate unit showed inferior performance when compared with benzene. Theoretical computation indicates a large dihedral angle in the latter system. EIS analysis evidenced the severe recombination in the thiophene-based dye, showing that good planarity may lead to dye aggregation and decrease the efficiency. |
| |
| Keywords: | Planarity Recombination Dihedral angle Dye-loading Solar cell |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国化学快报》浏览原始摘要信息 |
|
点击此处可从《中国化学快报》下载全文 |
|
