Composition-Dependent Thermoelectric Properties of Hybrid Tin Perovskites (CH3NH3)xCs1-xSnI3: Insights into Electrical and Thermal Performance
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arXiv
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| Auteurs principaux: | , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915287061757952 |
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| author | Ivanova, Alexandra Kutsemako, Olga Khanina, Aleksandra Gorbachev, Pavel Golikova, Margarita Shamova, Irina Volkova, Olga Luchnikov, Lev Gostishchev, Pavel Saranin, Danila Khovaylo, Vladimir |
| author_facet | Ivanova, Alexandra Kutsemako, Olga Khanina, Aleksandra Gorbachev, Pavel Golikova, Margarita Shamova, Irina Volkova, Olga Luchnikov, Lev Gostishchev, Pavel Saranin, Danila Khovaylo, Vladimir |
| contents | This work presents a comprehensive investigation of the thermoelectric properties of bulk hybrid perovskites with the general formula MAxCs1-xSnI3 (0 < x < 1). A series of bulk samples were synthesized and systematically characterized to explore the relationship between composition, microstructure, and thermoelectric performance. Compositions with intermediate MA+ content (x = 0.2 and x = 0.5) show an optimal balance between electrical conductivity and Seebeck coefficient, yielding high power factor values (0.6 - 0.7 muW/cmK2 at 423 K) and favorable thermoelectric performance with zT values up to 0.06. In contrast, compositions with MA+ contents (x = 0, x = 0.6, and x = 0.8) exhibit lower thermoelectric performance due to reduced Seebeck coefficients or suppressed conductivity. MASnI3 shows promising low-temperature thermoelectric performance with a maximum $zT$ of 0.10 at 423 K, attributed to its rapidly increasing Seebeck coefficient. These findings highlight the importance of microstructural control and composition optimization in the development of hybrid perovskites for thermoelectric applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_09013 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Composition-Dependent Thermoelectric Properties of Hybrid Tin Perovskites (CH3NH3)xCs1-xSnI3: Insights into Electrical and Thermal Performance Ivanova, Alexandra Kutsemako, Olga Khanina, Aleksandra Gorbachev, Pavel Golikova, Margarita Shamova, Irina Volkova, Olga Luchnikov, Lev Gostishchev, Pavel Saranin, Danila Khovaylo, Vladimir Materials Science This work presents a comprehensive investigation of the thermoelectric properties of bulk hybrid perovskites with the general formula MAxCs1-xSnI3 (0 < x < 1). A series of bulk samples were synthesized and systematically characterized to explore the relationship between composition, microstructure, and thermoelectric performance. Compositions with intermediate MA+ content (x = 0.2 and x = 0.5) show an optimal balance between electrical conductivity and Seebeck coefficient, yielding high power factor values (0.6 - 0.7 muW/cmK2 at 423 K) and favorable thermoelectric performance with zT values up to 0.06. In contrast, compositions with MA+ contents (x = 0, x = 0.6, and x = 0.8) exhibit lower thermoelectric performance due to reduced Seebeck coefficients or suppressed conductivity. MASnI3 shows promising low-temperature thermoelectric performance with a maximum $zT$ of 0.10 at 423 K, attributed to its rapidly increasing Seebeck coefficient. These findings highlight the importance of microstructural control and composition optimization in the development of hybrid perovskites for thermoelectric applications. |
| title | Composition-Dependent Thermoelectric Properties of Hybrid Tin Perovskites (CH3NH3)xCs1-xSnI3: Insights into Electrical and Thermal Performance |
| topic | Materials Science |
| url | https://arxiv.org/abs/2505.09013 |