Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells
Abstract Mixed tin-lead perovskite solar cells have driven a lot of passion for research because of their vital role in all-perovskite tandem solar cells, which hold the potential for achieving higher efficiencies compared to single-junction counterparts. However, the pronounced disparity in crystal...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-46679-w |
| _version_ | 1827315910991413248 |
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| author | Jin Zhou Shiqiang Fu Shun Zhou Lishuai Huang Cheng Wang Hongling Guan Dexin Pu Hongsen Cui Chen Wang Ti Wang Weiwei Meng Guojia Fang Weijun Ke |
| author_facet | Jin Zhou Shiqiang Fu Shun Zhou Lishuai Huang Cheng Wang Hongling Guan Dexin Pu Hongsen Cui Chen Wang Ti Wang Weiwei Meng Guojia Fang Weijun Ke |
| author_sort | Jin Zhou |
| collection | DOAJ |
| description | Abstract Mixed tin-lead perovskite solar cells have driven a lot of passion for research because of their vital role in all-perovskite tandem solar cells, which hold the potential for achieving higher efficiencies compared to single-junction counterparts. However, the pronounced disparity in crystallization processes between tin-based perovskites and lead-based perovskites, coupled with the easy Sn2+ oxidation, has long been a dominant factor contributing to high defect densities. In this study, we propose a multidimensional strategy to achieve efficient tin-lead perovskite solar cells by employing a functional N-(carboxypheny)guanidine hydrochloride molecule. The tailored N-(carboxypheny)guanidine hydrochloride molecule plays a pivotal role in manipulating the crystallization and grain growth of tin-lead perovskites, while also serving as a preservative to effectively inhibit Sn2+ oxidation, owing to the strong binding between N-(carboxypheny)guanidine hydrochloride and tin (II) iodide and the elevated energy barriers for oxidation. Consequently, single-junction tin-lead cells exhibit a stabilized power conversion efficiency of 23.11% and can maintain 97.45% of their initial value even after 3500 h of shelf storage in an inert atmosphere without encapsulation. We further integrate tin-lead perovskites into two-terminal monolithic all-perovskite tandem cells, delivering a certified efficiency of 27.35%. |
| first_indexed | 2024-04-24T23:05:57Z |
| format | Article |
| id | doaj.art-754544e344c74072af73ab1512a7868e |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-24T23:05:57Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-754544e344c74072af73ab1512a7868e2024-03-17T12:30:24ZengNature PortfolioNature Communications2041-17232024-03-0115111010.1038/s41467-024-46679-wMixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cellsJin Zhou0Shiqiang Fu1Shun Zhou2Lishuai Huang3Cheng Wang4Hongling Guan5Dexin Pu6Hongsen Cui7Chen Wang8Ti Wang9Weiwei Meng10Guojia Fang11Weijun Ke12Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversitySouth China Academy of Advanced Optoelectronics, South China Normal UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityKey Laboratory of Artificial Micro- and Nano-structures of Ministry of Education of China, School of Physics and Technology, Wuhan UniversityAbstract Mixed tin-lead perovskite solar cells have driven a lot of passion for research because of their vital role in all-perovskite tandem solar cells, which hold the potential for achieving higher efficiencies compared to single-junction counterparts. However, the pronounced disparity in crystallization processes between tin-based perovskites and lead-based perovskites, coupled with the easy Sn2+ oxidation, has long been a dominant factor contributing to high defect densities. In this study, we propose a multidimensional strategy to achieve efficient tin-lead perovskite solar cells by employing a functional N-(carboxypheny)guanidine hydrochloride molecule. The tailored N-(carboxypheny)guanidine hydrochloride molecule plays a pivotal role in manipulating the crystallization and grain growth of tin-lead perovskites, while also serving as a preservative to effectively inhibit Sn2+ oxidation, owing to the strong binding between N-(carboxypheny)guanidine hydrochloride and tin (II) iodide and the elevated energy barriers for oxidation. Consequently, single-junction tin-lead cells exhibit a stabilized power conversion efficiency of 23.11% and can maintain 97.45% of their initial value even after 3500 h of shelf storage in an inert atmosphere without encapsulation. We further integrate tin-lead perovskites into two-terminal monolithic all-perovskite tandem cells, delivering a certified efficiency of 27.35%.https://doi.org/10.1038/s41467-024-46679-w |
| spellingShingle | Jin Zhou Shiqiang Fu Shun Zhou Lishuai Huang Cheng Wang Hongling Guan Dexin Pu Hongsen Cui Chen Wang Ti Wang Weiwei Meng Guojia Fang Weijun Ke Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells Nature Communications |
| title | Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells |
| title_full | Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells |
| title_fullStr | Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells |
| title_full_unstemmed | Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells |
| title_short | Mixed tin-lead perovskites with balanced crystallization and oxidation barrier for all-perovskite tandem solar cells |
| title_sort | mixed tin lead perovskites with balanced crystallization and oxidation barrier for all perovskite tandem solar cells |
| url | https://doi.org/10.1038/s41467-024-46679-w |
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