Effect of triptycene unit on the performance of porphyrin-based dye-sensitized solar cells
| Autor: | Mao Yan, Qun-Hui Wang, Yi-Qiao Yan, Yi-Zhou Zhu, Ming-Liang Han, Jian-Yu Zheng |
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| Rok vydání: | 2021 |
| Předmět: |
Steric effects
General Chemical Engineering Energy conversion efficiency Photovoltaic system General Physics and Astronomy 02 engineering and technology General Chemistry Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Porphyrin 0104 chemical sciences chemistry.chemical_compound Dye-sensitized solar cell chemistry Triptycene Photosensitizer 0210 nano-technology |
| Zdroj: | Journal of Photochemistry and Photobiology A: Chemistry. 416:113325 |
| ISSN: | 1010-6030 |
| DOI: | 10.1016/j.jphotochem.2021.113325 |
| Popis: | Triptycene has been first introduced into porphyrin sensitizers (JY74 and JY75) for dye sensitized solar cells. Compared to reference dye YD26, the homoaromatic electron delocalization of triptycene makes the designed dyes a broadened absorption. Meanwhile, the rigid shape-persistent character of triptycene endows JY74 and JY75 an improved ability to diminish the charge recombination between electrolyte and semiconductor TiO2. As a result, after structural modification, larger short-circuit current and higher open-circuit voltage are achieved for dyes JY74 and JY75. The power conversion efficiency of JY75 is increased by 26.8 % compared to that of YD26. Consequently, triptycene may be a promising bulky steric hindrance group for decorating photosensitizer to get an attractive photovoltaic performance. |
| Databáze: | OpenAIRE |
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