| Autor: |
Baron, Thibaut, Zarate, Ximena, Hidalgo-Rosa, Yoan, Zambrano-Angulo, Michael, Mall-Haidaraly, Kevin, Pino-Rios, Ricardo, Pellegrin, Yann, Odobel, Fabrice, Cárdenas-Jirón, Gloria |
| Jazyk: |
English<br />French |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Comptes Rendus. Chimie, Vol 24, Iss S3, Pp 157-170 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1878-1543 |
| DOI: |
10.5802/crchim.113 |
| Popis: |
Transparent and colorless solar cells are attractive new photovoltaic devices as they could bring new opportunities to harness sunlight energy and particularly for their integration in windows. In this work, a new zinc phthalocyanine was synthesized and investigated as sensitizer in dye-sensitized solar cell (DSSC) for this purpose. The zinc phthalocyanine features a benzoic acid anchoring group and six thio(4-tertbutylphenyl) substituents in ${\alpha }$ position of the phtalocyanine. The dye was characterized by absorption and emission spectroscopy and by electrochemistry. The physico-chemical properties show that the dye fulfills the criteria for such an application. A detailed computational study indicates that the electronic communication with $\mathrm{TiO}_{2}$ conduction is weak owing to the absence of overlapping of the wavefunctions of the dye with those of the $\mathrm{TiO}_{2}$ semiconductor. The photovoltaic performances of the zinc phthalocyanine were measured in $\mathrm{TiO}_{2}$-based DSSC that revealed inefficient electron injection, which certainly can be explained by the weak electronic coupling of the dye with $\mathrm{TiO}_{2}$ that limits electron injection efficiency. A strategy is proposed to make better-performing sensitizers. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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