Layered mixed tin–lead hybrid perovskite solar cells with high stability
For neat Pb perovskites, two-dimensional (2D) hybrid perovskites, where n layers of inorganic material are separated by a long-chain organic cation, generally exhibit greater stability but have lower photovoltaic performance characteristics, motivating the study of 2D/3D mixed-dimension systems to r...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Published: |
American Chemical Society
2018
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| _version_ | 1797075311775449088 |
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| author | Ramirez, D Schutt, K Wang, Z Pearson, A Ruggeri, E Snaith, H Stranks, S Jaramillo, F |
| author_facet | Ramirez, D Schutt, K Wang, Z Pearson, A Ruggeri, E Snaith, H Stranks, S Jaramillo, F |
| author_sort | Ramirez, D |
| collection | OXFORD |
| description | For neat Pb perovskites, two-dimensional (2D) hybrid perovskites, where n layers of inorganic material are separated by a long-chain organic cation, generally exhibit greater stability but have lower photovoltaic performance characteristics, motivating the study of 2D/3D mixed-dimension systems to realize both high efficiency and stability. In this Letter, we demonstrate such optimal compromise between performance and stability using formamidinium, cesium, and t-butylammonium as A-site cations with Pb:Sn mixed-metal low-band-gap perovskites. Perovskite solar cells based on n = 4 and 5 lead–tin perovskites achieved power conversion efficiencies of up to 9.3 and 10.6%, respectively, and correspondingly retained 47 and 29% of their initial efficiency during storage in nitrogen for 2000 h. A similar stability trend for n = 4 over n = 5 was also observed for unencapsulated devices during continuous operation under a combined air atmosphere and temperature for 10 h, resulting in improved stability over the 3D lead–tin counterpart. |
| first_indexed | 2024-03-06T23:48:41Z |
| format | Journal article |
| id | oxford-uuid:71d9e7ec-f5fb-4c37-9dfd-7dd1a7d617bc |
| institution | University of Oxford |
| last_indexed | 2024-03-06T23:48:41Z |
| publishDate | 2018 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:71d9e7ec-f5fb-4c37-9dfd-7dd1a7d617bc2022-03-26T19:46:17ZLayered mixed tin–lead hybrid perovskite solar cells with high stabilityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:71d9e7ec-f5fb-4c37-9dfd-7dd1a7d617bcSymplectic Elements at OxfordAmerican Chemical Society2018Ramirez, DSchutt, KWang, ZPearson, ARuggeri, ESnaith, HStranks, SJaramillo, FFor neat Pb perovskites, two-dimensional (2D) hybrid perovskites, where n layers of inorganic material are separated by a long-chain organic cation, generally exhibit greater stability but have lower photovoltaic performance characteristics, motivating the study of 2D/3D mixed-dimension systems to realize both high efficiency and stability. In this Letter, we demonstrate such optimal compromise between performance and stability using formamidinium, cesium, and t-butylammonium as A-site cations with Pb:Sn mixed-metal low-band-gap perovskites. Perovskite solar cells based on n = 4 and 5 lead–tin perovskites achieved power conversion efficiencies of up to 9.3 and 10.6%, respectively, and correspondingly retained 47 and 29% of their initial efficiency during storage in nitrogen for 2000 h. A similar stability trend for n = 4 over n = 5 was also observed for unencapsulated devices during continuous operation under a combined air atmosphere and temperature for 10 h, resulting in improved stability over the 3D lead–tin counterpart. |
| spellingShingle | Ramirez, D Schutt, K Wang, Z Pearson, A Ruggeri, E Snaith, H Stranks, S Jaramillo, F Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title | Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title_full | Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title_fullStr | Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title_full_unstemmed | Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title_short | Layered mixed tin–lead hybrid perovskite solar cells with high stability |
| title_sort | layered mixed tin lead hybrid perovskite solar cells with high stability |
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