Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance
Defect passivation in the bulk and at the surface of the perovskite absorbing layer is essential to enhance the efficiency and stability of perovskite solar cells. Many studies have investigated the effect of Lewis acids and bases on defect passivation, demonstrating their positive impact on device...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ade5ef |
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| author | Maha AbuShawish Hussain Alawadhi Nouar Tabet |
| author_facet | Maha AbuShawish Hussain Alawadhi Nouar Tabet |
| author_sort | Maha AbuShawish |
| collection | DOAJ |
| description | Defect passivation in the bulk and at the surface of the perovskite absorbing layer is essential to enhance the efficiency and stability of perovskite solar cells. Many studies have investigated the effect of Lewis acids and bases on defect passivation, demonstrating their positive impact on device performance. However, the underlying passivation mechanisms remain a topic of debate. Recently, Machine Learning has been proposed to identify the key features of passivating agents, highlighting the need for more experimental data. In this study, we incorporate three zwitterionic molecules, Cysteine, Betaine, and Tyrosine, into the Cs _0.1 FA _0.9 PbI _3 perovskite layer and examine their impact on the photocarrier’s lifetime. Time-resolved photoluminescence (TRPL) measurements reveal a significant increase in photocarrier lifetime, indicating reduced non-radiative recombination. X-ray photoelectron spectroscopy (XPS) confirms zwitterion binding to the perovskite surface, reducing defect states. These findings highlight the potential of zwitterionic molecules as effective passivation agents for improving perovskite solar cells. |
| format | Article |
| id | doaj-art-deff23cbf9bb4931acb9e58703d8418b |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-deff23cbf9bb4931acb9e58703d8418b2025-08-20T03:30:33ZengIOP PublishingMaterials Research Express2053-15912025-01-0112707550310.1088/2053-1591/ade5efPassivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performanceMaha AbuShawish0https://orcid.org/0009-0006-2149-2077Hussain Alawadhi1Nouar Tabet2https://orcid.org/0000-0001-8488-9262Department of Applied Physics & Astronomy, College of Sciences, University of Sharjah , PO Box 27272, Sharjah, United Arab Emirates; Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah , PO Box 27272, Sharjah, United Arab EmiratesDepartment of Applied Physics & Astronomy, College of Sciences, University of Sharjah , PO Box 27272, Sharjah, United Arab Emirates; Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah , PO Box 27272, Sharjah, United Arab EmiratesDepartment of Applied Physics & Astronomy, College of Sciences, University of Sharjah , PO Box 27272, Sharjah, United Arab Emirates; Center for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah , PO Box 27272, Sharjah, United Arab EmiratesDefect passivation in the bulk and at the surface of the perovskite absorbing layer is essential to enhance the efficiency and stability of perovskite solar cells. Many studies have investigated the effect of Lewis acids and bases on defect passivation, demonstrating their positive impact on device performance. However, the underlying passivation mechanisms remain a topic of debate. Recently, Machine Learning has been proposed to identify the key features of passivating agents, highlighting the need for more experimental data. In this study, we incorporate three zwitterionic molecules, Cysteine, Betaine, and Tyrosine, into the Cs _0.1 FA _0.9 PbI _3 perovskite layer and examine their impact on the photocarrier’s lifetime. Time-resolved photoluminescence (TRPL) measurements reveal a significant increase in photocarrier lifetime, indicating reduced non-radiative recombination. X-ray photoelectron spectroscopy (XPS) confirms zwitterion binding to the perovskite surface, reducing defect states. These findings highlight the potential of zwitterionic molecules as effective passivation agents for improving perovskite solar cells.https://doi.org/10.1088/2053-1591/ade5efdefect passivationperovskite solar cellszwitterions |
| spellingShingle | Maha AbuShawish Hussain Alawadhi Nouar Tabet Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance Materials Research Express defect passivation perovskite solar cells zwitterions |
| title | Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance |
| title_full | Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance |
| title_fullStr | Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance |
| title_full_unstemmed | Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance |
| title_short | Passivation of defects in Cs0.1FA0.9PbI3 perovskite films using zwitterionic molecules for enhanced performance |
| title_sort | passivation of defects in cs0 1fa0 9pbi3 perovskite films using zwitterionic molecules for enhanced performance |
| topic | defect passivation perovskite solar cells zwitterions |
| url | https://doi.org/10.1088/2053-1591/ade5ef |
| work_keys_str_mv | AT mahaabushawish passivationofdefectsincs01fa09pbi3perovskitefilmsusingzwitterionicmoleculesforenhancedperformance AT hussainalawadhi passivationofdefectsincs01fa09pbi3perovskitefilmsusingzwitterionicmoleculesforenhancedperformance AT nouartabet passivationofdefectsincs01fa09pbi3perovskitefilmsusingzwitterionicmoleculesforenhancedperformance |