Joint Electrical, Photophysical, and Photovoltaic Studies on Truxene Dye- Sensitized Solar Cells: Impact of Arylamine Electron Donors
文献类型：期刊论文
| 作者 | Wang, Zhihui1; Liang, Mao1; Wang, He1; Wang, Peng2; Cheng, Fangyi3; Sun, Zhe1; Song, Xue1 |
| 刊名 | CHEMSUSCHEM
 |
| 出版日期 | 2014-03-01 |
| 卷号 | 7期号:3页码:795-803 |
| 关键词 | Cobalt Cyclic Voltammetry Dyes Pigments Electrochemistry Solar Cells |
| ISSN号 | 1864-5631 |
| DOI | 10.1002/cssc.201301155 |
| 英文摘要 | The judicious design of electron donors is one of the viable tactics to improve the efficiency of organic dyes for dye-sensitized solar cells (DSCs) employing outer-sphere redox couples. Herein, a hexahexyltruxene-substituted 4-(hexyloxy)-N-phenylaniline (HT-HPA) segment is constructed and employed as the electron donor in two organic push-pull dyes (M28 and M29) with high molar absorption coefficient values. Relative to its congener (C241) possessing the dihexyloxy-substituted triphenylamine electron donor, M29 exhibits red-shifted absorption as well as enhanced maximum molar absorption coefficient values. A thorough comparison with M29 and C241 demonstrates that the HT-HPA segment adequately insulates the TiO2 surface from the electrolyte, which prevents back-recombination and prolongs electron lifetime in the semiconductor. The diminishment of charge recombination not only enables attainment of strikingly high photovoltages (approaching 1V), but also overcompensates the disadvantageous impact of lower dye-load amounts. As a result, the dye transformation from C241 to M29 brings forth an efficiency improvement from 7.3% to 8.5% at the 100mWcm(-2) simulated AM1.5 conditions. Our work should shed light on the future design of more powerful push-pull organic photosensitizers for iodine-free DSCs. |
| 语种 | 英语 |
| WOS记录号 | WOS:000332070900014 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51217]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Zhihui |
| 作者单位 | 1.Tianjin Univ Technol, Dept Appl Chem, Tianjin Key Lab Organ Solar Cells & Photochem Con, Tianjin 300384, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 3.Nankai Univ, Chem Coll, Minist Educ, KLAEMC, Tianjin 300071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhihui,Liang, Mao,Wang, He,et al. Joint Electrical, Photophysical, and Photovoltaic Studies on Truxene Dye- Sensitized Solar Cells: Impact of Arylamine Electron Donors[J]. CHEMSUSCHEM,2014,7(3):795-803. |
| APA | Wang, Zhihui.,Liang, Mao.,Wang, He.,Wang, Peng.,Cheng, Fangyi.,...&Song, Xue.(2014).Joint Electrical, Photophysical, and Photovoltaic Studies on Truxene Dye- Sensitized Solar Cells: Impact of Arylamine Electron Donors.CHEMSUSCHEM,7(3),795-803. |
| MLA | Wang, Zhihui,et al."Joint Electrical, Photophysical, and Photovoltaic Studies on Truxene Dye- Sensitized Solar Cells: Impact of Arylamine Electron Donors".CHEMSUSCHEM 7.3(2014):795-803. |
入库方式： OAI收割
来源：化学研究所
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