Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells
Monolithic all-perovskite triple-junction solar cells have the potential to deliver power conversion efficiencies beyond those of state-of-art double-junction tandems and well beyond the detailed-balance limit for single junctions. Today, however, their performance is limited by large deficits in op...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Springer Nature
2023
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| _version_ | 1826313003610406912 |
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| author | Wang, J Zeng, L Zhang, D Maxwell, A Chen, H Datta, K Caiazzo, A Remmerswaal, WHM Schipper, NRM Chen, Z Ho, K Dasgupta, A Kusch, G Ollearo, R Bellini, L Hu, S Wang, Z Li, C Teale, S Grater, L Chen, B Wienk, MM Oliver, RA Snaith, HJ Janssen, RAJ Sargent, EH |
| author_facet | Wang, J Zeng, L Zhang, D Maxwell, A Chen, H Datta, K Caiazzo, A Remmerswaal, WHM Schipper, NRM Chen, Z Ho, K Dasgupta, A Kusch, G Ollearo, R Bellini, L Hu, S Wang, Z Li, C Teale, S Grater, L Chen, B Wienk, MM Oliver, RA Snaith, HJ Janssen, RAJ Sargent, EH |
| author_sort | Wang, J |
| collection | OXFORD |
| description | Monolithic all-perovskite triple-junction solar cells have the potential to deliver power conversion efficiencies beyond those of state-of-art double-junction tandems and well beyond the detailed-balance limit for single junctions. Today, however, their performance is limited by large deficits in open-circuit voltage and unfulfilled potential in both short-circuit current density and fill factor in the wide-bandgap perovskite sub cell. Here we find that halide heterogeneity—present even immediately following materials synthesis—plays a key role in interfacial non-radiative recombination and collection efficiency losses under prolonged illumination for Br-rich perovskites. We find that a diammonium halide salt, propane-1,3-diammonium iodide, introduced during film fabrication, improves halide homogenization in Br-rich perovskites, leading to enhanced operating stability and a record open-circuit voltage of 1.44 V in an inverted (p–i–n) device; ~86% of the detailed-balance limit for a bandgap of 1.97 eV. The efficient wide-bandgap sub cell enables the fabrication of monolithic all-perovskite triple-junction solar cells with an open-circuit voltage of 3.33 V and a champion PCE of 25.1% (23.87% certified quasi-steady-state efficiency). |
| first_indexed | 2024-03-07T08:14:38Z |
| format | Journal article |
| id | oxford-uuid:c7a13442-76a8-455f-bdd4-da3459231f78 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:05:47Z |
| publishDate | 2023 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | oxford-uuid:c7a13442-76a8-455f-bdd4-da3459231f782024-05-20T10:07:24ZHalide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c7a13442-76a8-455f-bdd4-da3459231f78EnglishSymplectic ElementsSpringer Nature2023Wang, JZeng, LZhang, DMaxwell, AChen, HDatta, KCaiazzo, ARemmerswaal, WHMSchipper, NRMChen, ZHo, KDasgupta, AKusch, GOllearo, RBellini, LHu, SWang, ZLi, CTeale, SGrater, LChen, BWienk, MMOliver, RASnaith, HJJanssen, RAJSargent, EHMonolithic all-perovskite triple-junction solar cells have the potential to deliver power conversion efficiencies beyond those of state-of-art double-junction tandems and well beyond the detailed-balance limit for single junctions. Today, however, their performance is limited by large deficits in open-circuit voltage and unfulfilled potential in both short-circuit current density and fill factor in the wide-bandgap perovskite sub cell. Here we find that halide heterogeneity—present even immediately following materials synthesis—plays a key role in interfacial non-radiative recombination and collection efficiency losses under prolonged illumination for Br-rich perovskites. We find that a diammonium halide salt, propane-1,3-diammonium iodide, introduced during film fabrication, improves halide homogenization in Br-rich perovskites, leading to enhanced operating stability and a record open-circuit voltage of 1.44 V in an inverted (p–i–n) device; ~86% of the detailed-balance limit for a bandgap of 1.97 eV. The efficient wide-bandgap sub cell enables the fabrication of monolithic all-perovskite triple-junction solar cells with an open-circuit voltage of 3.33 V and a champion PCE of 25.1% (23.87% certified quasi-steady-state efficiency). |
| spellingShingle | Wang, J Zeng, L Zhang, D Maxwell, A Chen, H Datta, K Caiazzo, A Remmerswaal, WHM Schipper, NRM Chen, Z Ho, K Dasgupta, A Kusch, G Ollearo, R Bellini, L Hu, S Wang, Z Li, C Teale, S Grater, L Chen, B Wienk, MM Oliver, RA Snaith, HJ Janssen, RAJ Sargent, EH Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title | Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title_full | Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title_fullStr | Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title_full_unstemmed | Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title_short | Halide homogenization for low energy loss in 2-eV-bandgap perovskites and increased efficiency in all-perovskite triple-junction solar cells |
| title_sort | halide homogenization for low energy loss in 2 ev bandgap perovskites and increased efficiency in all perovskite triple junction solar cells |
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