Co-evaporated Formamidinium tin triiodide with suppressed p-type self-doping
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918155571429376 |
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| author | Park, Junhyoung Olivati, Andrea Prato, Mirko Kim, Min Petrozza, Annamaria |
| author_facet | Park, Junhyoung Olivati, Andrea Prato, Mirko Kim, Min Petrozza, Annamaria |
| contents | Co-evaporation of formamidinium tin triiodide (FASnI3) precursors, without any additives or reducing agents, leads to the growth of a highly crystalline thin film which shows a bandgap around 1.31 eV, closely matching the theoretical value predicted from the ideal single crystal structure of FASnI3. The polycrystalline thin film presents a lower tendency of Sn2+ to Sn4+ oxidation and highly reduced tendency to self-doping, demonstrating, overall, an improved resistance to defects formation. These findings suggest solvent-free co-evaporation processes as a promising route for high quality Sn-based perovskite polycrystalline thin films. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_05564 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Co-evaporated Formamidinium tin triiodide with suppressed p-type self-doping Park, Junhyoung Olivati, Andrea Prato, Mirko Kim, Min Petrozza, Annamaria Materials Science Chemical Physics Co-evaporation of formamidinium tin triiodide (FASnI3) precursors, without any additives or reducing agents, leads to the growth of a highly crystalline thin film which shows a bandgap around 1.31 eV, closely matching the theoretical value predicted from the ideal single crystal structure of FASnI3. The polycrystalline thin film presents a lower tendency of Sn2+ to Sn4+ oxidation and highly reduced tendency to self-doping, demonstrating, overall, an improved resistance to defects formation. These findings suggest solvent-free co-evaporation processes as a promising route for high quality Sn-based perovskite polycrystalline thin films. |
| title | Co-evaporated Formamidinium tin triiodide with suppressed p-type self-doping |
| topic | Materials Science Chemical Physics |
| url | https://arxiv.org/abs/2510.05564 |