Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells
Perovskite solar cells deliver high efficiencies, but are often made from high-cost bespoke chemicals, such as the archetypical hole-conductor, 2,2′,7,7′-tetrakis(N,N-di-p-methoxy-phenylamine)-9-9′-spirobifluorene (spiro-OMeTAD). Herein, new charge-transporting carbazole-based enamine molecules are...
| Автори: | , , , , , , , , , , , , , |
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| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
Wiley
2021
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| _version_ | 1826264145264115712 |
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| author | Zhou, S Daskeviciene, M Steponaitis, M Bubniene, G Jankauskas, V Schutt, K Holzhey, P Marshall, AR Caprioglio, P Christoforo, G Ball, JM Malinauskas, T Getautis, V Snaith, HJ |
| author_facet | Zhou, S Daskeviciene, M Steponaitis, M Bubniene, G Jankauskas, V Schutt, K Holzhey, P Marshall, AR Caprioglio, P Christoforo, G Ball, JM Malinauskas, T Getautis, V Snaith, HJ |
| author_sort | Zhou, S |
| collection | OXFORD |
| description | Perovskite solar cells deliver high efficiencies, but are often made from high-cost bespoke chemicals, such as the archetypical hole-conductor, 2,2′,7,7′-tetrakis(N,N-di-p-methoxy-phenylamine)-9-9′-spirobifluorene (spiro-OMeTAD). Herein, new charge-transporting carbazole-based enamine molecules are reported. The new hole conductors do not require chemical oxidation to reach high power conversion efficiencies (PCEs) when employed in n-type-intrinsic-p-type perovskite solar cells; thus, reducing the risk of moisture degrading the perovskite layer through the hydrophilicity of oxidizing additives that are typically used with conventional hole conductors. Devices made with these new undoped carbazole-based enamines achieve comparable PCEs to those employing doped spiro-OMeTAD, and greatly enhanced stability under 85 °C thermal aging; maintaining 83% of their peak efficiency after 1000 h, compared with spiro-OMeTAD-based devices that degrade to 26% of the peak PCE within 24 h. Furthermore, the carbazole-based enamines can be synthesized without the use of organometallic catalysts and complicated purification techniques, lowering the material cost by one order of magnitude compared with spiro-OMeTAD. As a result, we calculate that the overall manufacturing costs of future photovoltaic (PV) modules are reduced, making the levelized cost of electricity competitive with silicon PV modules.
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| first_indexed | 2024-03-06T20:03:03Z |
| format | Journal article |
| id | oxford-uuid:27f8cc08-b828-43de-bb15-40e0ea81fddf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:03:03Z |
| publishDate | 2021 |
| publisher | Wiley |
| record_format | dspace |
| spelling | oxford-uuid:27f8cc08-b828-43de-bb15-40e0ea81fddf2022-03-26T12:10:05ZLow-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:27f8cc08-b828-43de-bb15-40e0ea81fddfEnglishSymplectic ElementsWiley2021Zhou, SDaskeviciene, MSteponaitis, MBubniene, GJankauskas, VSchutt, KHolzhey, PMarshall, ARCaprioglio, PChristoforo, GBall, JMMalinauskas, TGetautis, VSnaith, HJPerovskite solar cells deliver high efficiencies, but are often made from high-cost bespoke chemicals, such as the archetypical hole-conductor, 2,2′,7,7′-tetrakis(N,N-di-p-methoxy-phenylamine)-9-9′-spirobifluorene (spiro-OMeTAD). Herein, new charge-transporting carbazole-based enamine molecules are reported. The new hole conductors do not require chemical oxidation to reach high power conversion efficiencies (PCEs) when employed in n-type-intrinsic-p-type perovskite solar cells; thus, reducing the risk of moisture degrading the perovskite layer through the hydrophilicity of oxidizing additives that are typically used with conventional hole conductors. Devices made with these new undoped carbazole-based enamines achieve comparable PCEs to those employing doped spiro-OMeTAD, and greatly enhanced stability under 85 °C thermal aging; maintaining 83% of their peak efficiency after 1000 h, compared with spiro-OMeTAD-based devices that degrade to 26% of the peak PCE within 24 h. Furthermore, the carbazole-based enamines can be synthesized without the use of organometallic catalysts and complicated purification techniques, lowering the material cost by one order of magnitude compared with spiro-OMeTAD. As a result, we calculate that the overall manufacturing costs of future photovoltaic (PV) modules are reduced, making the levelized cost of electricity competitive with silicon PV modules. |
| spellingShingle | Zhou, S Daskeviciene, M Steponaitis, M Bubniene, G Jankauskas, V Schutt, K Holzhey, P Marshall, AR Caprioglio, P Christoforo, G Ball, JM Malinauskas, T Getautis, V Snaith, HJ Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title | Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title_full | Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title_fullStr | Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title_full_unstemmed | Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title_short | Low-cost dopant-free carbazole enamine hole-transporting materials for thermally stable perovskite solar cells |
| title_sort | low cost dopant free carbazole enamine hole transporting materials for thermally stable perovskite solar cells |
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