Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells
In the quest for perovskite materials with reduced toxicity, Sn perovskites are emerging. However, they suffer from material instability and rapid crystallization, leading to high defect densities in the films. In this work, the methylammonium chloride (MACl)-assisted crystallization as a route to i...
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| Format: | Article |
| Language: | English English |
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John Wiley and Sons Inc
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/42903/ http://umpir.ump.edu.my/id/eprint/42903/1/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization.pdf http://umpir.ump.edu.my/id/eprint/42903/2/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization%20for%20improved%20performance%20of%20lead-free%20tin%20perovskite%20solar%20cells_abs.pdf |
| _version_ | 1848826731323981824 |
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| author | Cuzzupè, Daniele T. Öz, Senol Dilara Ling, Jinkiong Illing, Elias Seewald, Tobias Jose, Rajan Olthof, Selina Azhar, Fakharuddin Schmidt-Mende, Lukas |
| author_facet | Cuzzupè, Daniele T. Öz, Senol Dilara Ling, Jinkiong Illing, Elias Seewald, Tobias Jose, Rajan Olthof, Selina Azhar, Fakharuddin Schmidt-Mende, Lukas |
| author_sort | Cuzzupè, Daniele T. |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | In the quest for perovskite materials with reduced toxicity, Sn perovskites are emerging. However, they suffer from material instability and rapid crystallization, leading to high defect densities in the films. In this work, the methylammonium chloride (MACl)-assisted crystallization as a route to improve stability and optoelectronic quality of quasi 2D/3D PEA0.08FA0.92SnI3 perovskite is demonstrated. For an optimal additive amount (10 mol%), a 37% increase in power conversion efficiency is found. Notably, MACl enhances the films' stability, evidenced by temporal PL tracking. Understanding the effect of MACl addition in this system is interesting for the pursuit of efficient and stable tin-based devices. The investigations show that MACl addition causes a shift in the optical bandgap and improves morphology, indicating effects in the bulk crystal structure. X-ray photoelectron spectroscopy confirms the presence of Cl on the surface, but no indication of MA+ is found. Intriguingly, UV photoelectron spectroscopy shows pronounced changes in the density of states. For the first time, it is shown that MACl promotes the formation of a two-dimensional layer via the surface accumulation of PEA+. The MACl additive lowers the absorber's ionization energy, possibly facilitating hole extraction. Overall, this work highlights a facile route to control the crystallization of Sn perovskites. |
| first_indexed | 2025-11-15T03:49:29Z |
| format | Article |
| id | ump-42903 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T03:49:29Z |
| publishDate | 2023 |
| publisher | John Wiley and Sons Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-429032025-01-07T05:05:50Z http://umpir.ump.edu.my/id/eprint/42903/ Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells Cuzzupè, Daniele T. Öz, Senol Dilara Ling, Jinkiong Illing, Elias Seewald, Tobias Jose, Rajan Olthof, Selina Azhar, Fakharuddin Schmidt-Mende, Lukas HD Industries. Land use. Labor Q Science (General) T Technology (General) In the quest for perovskite materials with reduced toxicity, Sn perovskites are emerging. However, they suffer from material instability and rapid crystallization, leading to high defect densities in the films. In this work, the methylammonium chloride (MACl)-assisted crystallization as a route to improve stability and optoelectronic quality of quasi 2D/3D PEA0.08FA0.92SnI3 perovskite is demonstrated. For an optimal additive amount (10 mol%), a 37% increase in power conversion efficiency is found. Notably, MACl enhances the films' stability, evidenced by temporal PL tracking. Understanding the effect of MACl addition in this system is interesting for the pursuit of efficient and stable tin-based devices. The investigations show that MACl addition causes a shift in the optical bandgap and improves morphology, indicating effects in the bulk crystal structure. X-ray photoelectron spectroscopy confirms the presence of Cl on the surface, but no indication of MA+ is found. Intriguingly, UV photoelectron spectroscopy shows pronounced changes in the density of states. For the first time, it is shown that MACl promotes the formation of a two-dimensional layer via the surface accumulation of PEA+. The MACl additive lowers the absorber's ionization energy, possibly facilitating hole extraction. Overall, this work highlights a facile route to control the crystallization of Sn perovskites. John Wiley and Sons Inc 2023-12 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42903/1/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization.pdf pdf en http://umpir.ump.edu.my/id/eprint/42903/2/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization%20for%20improved%20performance%20of%20lead-free%20tin%20perovskite%20solar%20cells_abs.pdf Cuzzupè, Daniele T. and Öz, Senol Dilara and Ling, Jinkiong and Illing, Elias and Seewald, Tobias and Jose, Rajan and Olthof, Selina and Azhar, Fakharuddin and Schmidt-Mende, Lukas (2023) Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells. Solar RRL, 7 (2300770). pp. 1-10. ISSN 2367-198X. (Published) https://doi.org/10.1002/solr.202300770 https://doi.org/10.1002/solr.202300770 |
| spellingShingle | HD Industries. Land use. Labor Q Science (General) T Technology (General) Cuzzupè, Daniele T. Öz, Senol Dilara Ling, Jinkiong Illing, Elias Seewald, Tobias Jose, Rajan Olthof, Selina Azhar, Fakharuddin Schmidt-Mende, Lukas Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title | Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title_full | Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title_fullStr | Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title_full_unstemmed | Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title_short | Understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| title_sort | understanding the methylammonium chloride-assisted crystallization for improved performance of lead-free tin perovskite solar cells |
| topic | HD Industries. Land use. Labor Q Science (General) T Technology (General) |
| url | http://umpir.ump.edu.my/id/eprint/42903/ http://umpir.ump.edu.my/id/eprint/42903/ http://umpir.ump.edu.my/id/eprint/42903/ http://umpir.ump.edu.my/id/eprint/42903/1/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization.pdf http://umpir.ump.edu.my/id/eprint/42903/2/Understanding%20the%20methylammonium%20chloride-assisted%20crystallization%20for%20improved%20performance%20of%20lead-free%20tin%20perovskite%20solar%20cells_abs.pdf |