Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells
Metal halide perovskite based tandem solar cells are promising to achieve power conversion efficiency beyond the theoretical limit of their single-junction counterparts. However, overcoming the significant open-circuit voltage deficit present in wide-bandgap perovskite solar cells remains a major hu...
| Main Authors: | , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
Wiley
2023
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| _version_ | 1826312786714558464 |
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| author | Shen, X Gallant, BM Holzhey, P Smith, JA Elmestekawy, KA Yuan, Z Rathnayake, PVGM Bernardi, S Dasgupta, A Kasparavicius, E Malinauskas, T Caprioglio, P Shargaieva, O Lin, Y-H McCarthy, MM Unger, E Getautis, V Widmer-Cooper, A Herz, LM Snaith, HJ |
| author_facet | Shen, X Gallant, BM Holzhey, P Smith, JA Elmestekawy, KA Yuan, Z Rathnayake, PVGM Bernardi, S Dasgupta, A Kasparavicius, E Malinauskas, T Caprioglio, P Shargaieva, O Lin, Y-H McCarthy, MM Unger, E Getautis, V Widmer-Cooper, A Herz, LM Snaith, HJ |
| author_sort | Shen, X |
| collection | OXFORD |
| description | Metal halide perovskite based tandem solar cells are promising to achieve power conversion efficiency beyond the theoretical limit of their single-junction counterparts. However, overcoming the significant open-circuit voltage deficit present in wide-bandgap perovskite solar cells remains a major hurdle for realizing efficient and stable perovskite tandem cells. Here, a holistic approach to overcoming challenges in 1.8 eV perovskite solar cells is reported by engineering the perovskite crystallization pathway by means of chloride additives. In conjunction with employing a self-assembled monolayer as the hole-transport layer, an open-circuit voltage of 1.25 V and a power conversion efficiency of 17.0% are achieved. The key role of methylammonium chloride addition is elucidated in facilitating the growth of a chloride-rich intermediate phase that directs crystallization of the desired cubic perovskite phase and induces more effective halide homogenization. The as-formed 1.8 eV perovskite demonstrates suppressed halide segregation and improved optoelectronic properties. |
| first_indexed | 2024-04-23T08:27:07Z |
| format | Journal article |
| id | oxford-uuid:9df4d338-dc69-4c70-8d66-716166305b32 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-04-23T08:27:07Z |
| publishDate | 2023 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:9df4d338-dc69-4c70-8d66-716166305b322024-04-22T07:11:03ZChloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9df4d338-dc69-4c70-8d66-716166305b32EnglishSymplectic ElementsWiley2023Shen, XGallant, BMHolzhey, PSmith, JAElmestekawy, KAYuan, ZRathnayake, PVGMBernardi, SDasgupta, AKasparavicius, EMalinauskas, TCaprioglio, PShargaieva, OLin, Y-HMcCarthy, MMUnger, EGetautis, VWidmer-Cooper, AHerz, LMSnaith, HJMetal halide perovskite based tandem solar cells are promising to achieve power conversion efficiency beyond the theoretical limit of their single-junction counterparts. However, overcoming the significant open-circuit voltage deficit present in wide-bandgap perovskite solar cells remains a major hurdle for realizing efficient and stable perovskite tandem cells. Here, a holistic approach to overcoming challenges in 1.8 eV perovskite solar cells is reported by engineering the perovskite crystallization pathway by means of chloride additives. In conjunction with employing a self-assembled monolayer as the hole-transport layer, an open-circuit voltage of 1.25 V and a power conversion efficiency of 17.0% are achieved. The key role of methylammonium chloride addition is elucidated in facilitating the growth of a chloride-rich intermediate phase that directs crystallization of the desired cubic perovskite phase and induces more effective halide homogenization. The as-formed 1.8 eV perovskite demonstrates suppressed halide segregation and improved optoelectronic properties. |
| spellingShingle | Shen, X Gallant, BM Holzhey, P Smith, JA Elmestekawy, KA Yuan, Z Rathnayake, PVGM Bernardi, S Dasgupta, A Kasparavicius, E Malinauskas, T Caprioglio, P Shargaieva, O Lin, Y-H McCarthy, MM Unger, E Getautis, V Widmer-Cooper, A Herz, LM Snaith, HJ Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title | Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title_full | Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title_fullStr | Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title_full_unstemmed | Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title_short | Chloride-based additive engineering for efficient and stable wide-bandgap perovskite solar cells |
| title_sort | chloride based additive engineering for efficient and stable wide bandgap perovskite solar cells |
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