Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3
Abstract Pyroelectric and photovoltaic effects are vital in cutting-edge broadband sensors and solar energy harvesting. Recent advances revealed great potential of the bulk photovoltaic effect in two-dimensional (2D) materials to surpass the Shockley-Queiseer limit. Moreover, the atomic thickness, h...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-024-00523-3 |
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| author | Michael Uzhansky Abhishek Rakshit Yoav Kalcheim Elad Koren |
| author_facet | Michael Uzhansky Abhishek Rakshit Yoav Kalcheim Elad Koren |
| author_sort | Michael Uzhansky |
| collection | DOAJ |
| description | Abstract Pyroelectric and photovoltaic effects are vital in cutting-edge broadband sensors and solar energy harvesting. Recent advances revealed great potential of the bulk photovoltaic effect in two-dimensional (2D) materials to surpass the Shockley-Queiseer limit. Moreover, the atomic thickness, high thermal conductivity and room-temperature ferroelectricity endow 2D ferroelectrics with a superior pyroelectric response. Herein, we combined direct pyroelectric-photovoltaic measurements in 2D α-In2Se3. The results reveal a gigantic pyroelectric coefficient of ∼30.7 mC/m2K and a figure of merit of ∼135.9 m2/C. Moreover, a coupled pyroelectric-photovoltaic effect was demonstrated, where the pyroelectric current follows the temperature derivative, while the short-circuit current follows temperature. Finally, we utilized the intercoupled ferroelectricity of In2Se3 to realize a non-volatile, self-powered photovoltaic memory operation, demonstrating stable short-circuit current switching with 103 ON-OFF ratio. The coupled pyroelectric-photovoltaic effect, along with reconfigurable photocurrent, pave the way for a novel integrated thermal and optical response, in-memory logic and energy harvesting. |
| format | Article |
| id | doaj-art-d22501d04484439bad52052a4c0fb49e |
| institution | Kabale University |
| issn | 2397-7132 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj 2D Materials and Applications |
| spelling | doaj-art-d22501d04484439bad52052a4c0fb49e2025-01-26T12:36:13ZengNature Portfolionpj 2D Materials and Applications2397-71322025-01-01911810.1038/s41699-024-00523-3Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3Michael Uzhansky0Abhishek Rakshit1Yoav Kalcheim2Elad Koren3Faculty of Materials Science and Engineering, Technion - Israel Institute of TechnologyFaculty of Materials Science and Engineering, Technion - Israel Institute of TechnologyFaculty of Materials Science and Engineering, Technion - Israel Institute of TechnologyFaculty of Materials Science and Engineering, Technion - Israel Institute of TechnologyAbstract Pyroelectric and photovoltaic effects are vital in cutting-edge broadband sensors and solar energy harvesting. Recent advances revealed great potential of the bulk photovoltaic effect in two-dimensional (2D) materials to surpass the Shockley-Queiseer limit. Moreover, the atomic thickness, high thermal conductivity and room-temperature ferroelectricity endow 2D ferroelectrics with a superior pyroelectric response. Herein, we combined direct pyroelectric-photovoltaic measurements in 2D α-In2Se3. The results reveal a gigantic pyroelectric coefficient of ∼30.7 mC/m2K and a figure of merit of ∼135.9 m2/C. Moreover, a coupled pyroelectric-photovoltaic effect was demonstrated, where the pyroelectric current follows the temperature derivative, while the short-circuit current follows temperature. Finally, we utilized the intercoupled ferroelectricity of In2Se3 to realize a non-volatile, self-powered photovoltaic memory operation, demonstrating stable short-circuit current switching with 103 ON-OFF ratio. The coupled pyroelectric-photovoltaic effect, along with reconfigurable photocurrent, pave the way for a novel integrated thermal and optical response, in-memory logic and energy harvesting.https://doi.org/10.1038/s41699-024-00523-3 |
| spellingShingle | Michael Uzhansky Abhishek Rakshit Yoav Kalcheim Elad Koren Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 npj 2D Materials and Applications |
| title | Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 |
| title_full | Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 |
| title_fullStr | Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 |
| title_full_unstemmed | Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 |
| title_short | Coupled pyroelectric-photovoltaic effect in 2D ferroelectric α-In 2 Se 3 |
| title_sort | coupled pyroelectric photovoltaic effect in 2d ferroelectric α in 2 se 3 |
| url | https://doi.org/10.1038/s41699-024-00523-3 |
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