Study on Optical and Electrical Properties of Thermally Evaporated Tin Oxide Thin Films for Perovskite Solar Cells
Perovskite solar cells were fabricated with SnO<sub>2</sub> thin films as a window layer and electron transport layer by thermal evaporation. Fundamental characteristics of SnO<sub>2</sub> thin films to determine the performance of solar cells were investigated in an optical...
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| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
MDPI AG
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/0196b5a3446443fb9a44adad7d727356 |
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| Sumario: | Perovskite solar cells were fabricated with SnO<sub>2</sub> thin films as a window layer and electron transport layer by thermal evaporation. Fundamental characteristics of SnO<sub>2</sub> thin films to determine the performance of solar cells were investigated in an optical and electrical manner, varying annealing temperatures. It is found the crystallinity and the presence of localized energy states play a key factor to control the properties of SnO<sub>2</sub>. In addition, XPS was used to confirm the stoichiometry of the SnO<sub>2</sub> thin films, indicating a better charge collection on the annealed SnO<sub>2</sub> samples. The SnO<sub>2</sub> thin films annealed at 300 °C exhibited desirable optical and electrical properties for the enhanced performance of solar cells. The results show that thermally evaporated SnO<sub>2</sub> thin films can be precisely engineered and controlled for mass production and more practical industrialization of perovskite solar cells. |
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