Dye-sensitized solar cells achieved with multi-layered SnO2/ZnO composite photoanodes through precise control of thickness and composition
The spin coating is cost-effective, straightforward, and highly suitable for the large-scale production of solar cells. In this study, we report the fabrication of SnO 2 /ZnO composite films for dye-sensitized solar cells (DSCs) using a simplified and cost-effective spin-coating technique on fluorin...
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Veröffentlicht in: | Journal of materials science. Materials in electronics 2024-11, Vol.35 (33), p.2099, Article 2099 |
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Sprache: | eng |
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Zusammenfassung: | The spin coating is cost-effective, straightforward, and highly suitable for the large-scale production of solar cells. In this study, we report the fabrication of SnO
2
/ZnO composite films for dye-sensitized solar cells (DSCs) using a simplified and cost-effective spin-coating technique on fluorine-doped tin oxide glass substrates. This study introduces a new way of preparing a multi-layered composite thin film using a suspension containing colloidal SnO
2
nanoparticles and ZnO nanoparticles followed by sonication and aging of TiO
2
-free high-efficiency DSCs. Our approach provides a facile way of obtaining a uniform film of tunable thickness with high reproducibility by adjusting the total number of coating cycles. The spin-coating process achieved a nano-sized SnO
2
-covered ZnO layer, contributing to enhanced conversion efficiency in DSCs. A specific number of seven coating cycles was identified as optimal for achieving the aspirational performance. Under standard AM 1.5 irradiation with an intensity of 100 mW/ cm
2
, the fabricated SnO
2
/ZnO composite films revealed an overall energy conversion efficiency of 6.5% with a thickness of 2.06 µm which is impressive for a TiO
2
-free DSC. This achievement indicates the potential of the developed fabrication process for cost-effective and scalable production of efficient DSCs with SnO
2
/ZnO composite. |
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ISSN: | 0957-4522 1573-482X 1573-482X |
DOI: | 10.1007/s10854-024-13837-1 |