Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD
Metal halide perovskite solar cells have now reached efficiencies of over 22%. To date, the most efficient perovskite solar cells have the n-i-p device architecture and use 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene or poly(triarylamine) as the hole transport material (HTM...
| Main Authors: | , , , , , , |
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| Format: | Journal article |
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American Chemical Society
2017
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| _version_ | 1826262368733102080 |
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| author | Pellaroque, A Noel, NK Habisreutinger, SN Zhang, Y Barlow, S Marder, SR Snaith, HJ |
| author_facet | Pellaroque, A Noel, NK Habisreutinger, SN Zhang, Y Barlow, S Marder, SR Snaith, HJ |
| author_sort | Pellaroque, A |
| collection | OXFORD |
| description | Metal halide perovskite solar cells have now reached efficiencies of over 22%. To date, the most efficient perovskite solar cells have the n-i-p device architecture and use 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene or poly(triarylamine) as the hole transport material (HTM), which are typically doped with lithium bis((trifluomethyl)sulfonyl)amide (Li-TFSI). Li-TFSI is hygroscopic and detrimental to the long-term performance of the solar cells, limiting its practical use. In this work, we successfully replace Li-TFSI by molybdenum tris(1-(methoxycarbonyl)-2-(trifluoromethyl)ethane-1,2-dithiolene), Mo(tfd-CO2Me)3, or molybdenum tris(1-(trifluoroacetyl)-2-(trifluoromethyl)ethane-1,2-dithiolene), Mo(tfd-COCF3)3. With these two dopants, we achieve stabilized power conversion efficiencies up to 16.7% and 15.7% with average efficiencies of 14.8% ± 1.1% and 14.4% ± 1.2%, respectively. Moreover, we observe a significant enhancement of the long-term stability of perovskite solar cells under 85 °C thermal stressing in air. |
| first_indexed | 2024-03-06T19:35:20Z |
| format | Journal article |
| id | oxford-uuid:1edc1921-b2fb-4798-9aed-b8a665cf338b |
| institution | University of Oxford |
| last_indexed | 2024-03-06T19:35:20Z |
| publishDate | 2017 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:1edc1921-b2fb-4798-9aed-b8a665cf338b2022-03-26T11:18:44ZEfficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTADJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1edc1921-b2fb-4798-9aed-b8a665cf338bSymplectic Elements at OxfordAmerican Chemical Society2017Pellaroque, ANoel, NKHabisreutinger, SNZhang, YBarlow, SMarder, SRSnaith, HJMetal halide perovskite solar cells have now reached efficiencies of over 22%. To date, the most efficient perovskite solar cells have the n-i-p device architecture and use 2,2′,7,7′-tetrakis(N,N′-di-p-methoxyphenylamine)-9,9′-spirobifluorene or poly(triarylamine) as the hole transport material (HTM), which are typically doped with lithium bis((trifluomethyl)sulfonyl)amide (Li-TFSI). Li-TFSI is hygroscopic and detrimental to the long-term performance of the solar cells, limiting its practical use. In this work, we successfully replace Li-TFSI by molybdenum tris(1-(methoxycarbonyl)-2-(trifluoromethyl)ethane-1,2-dithiolene), Mo(tfd-CO2Me)3, or molybdenum tris(1-(trifluoroacetyl)-2-(trifluoromethyl)ethane-1,2-dithiolene), Mo(tfd-COCF3)3. With these two dopants, we achieve stabilized power conversion efficiencies up to 16.7% and 15.7% with average efficiencies of 14.8% ± 1.1% and 14.4% ± 1.2%, respectively. Moreover, we observe a significant enhancement of the long-term stability of perovskite solar cells under 85 °C thermal stressing in air. |
| spellingShingle | Pellaroque, A Noel, NK Habisreutinger, SN Zhang, Y Barlow, S Marder, SR Snaith, HJ Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title | Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title_full | Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title_fullStr | Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title_full_unstemmed | Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title_short | Efficient and stable perovskite solar cells using molybdenum tris(dithiolene)s as p-dopants for spiro-OMeTAD |
| title_sort | efficient and stable perovskite solar cells using molybdenum tris dithiolene s as p dopants for spiro ometad |
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