Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells.
Organic-inorganic perovskite solar cells have recently emerged at the forefront of photovoltaics research. Power conversion efficiencies have experienced an unprecedented increase to reported values exceeding 19% within just four years. With the focus mainly on efficiency, the aspect of stability ha...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
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American Chemical Society
2014
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| _version_ | 1826298910497308672 |
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| author | Habisreutinger, SN Leijtens, T Eperon, G Stranks, S Nicholas, R Snaith, H |
| author_facet | Habisreutinger, SN Leijtens, T Eperon, G Stranks, S Nicholas, R Snaith, H |
| author_sort | Habisreutinger, SN |
| collection | OXFORD |
| description | Organic-inorganic perovskite solar cells have recently emerged at the forefront of photovoltaics research. Power conversion efficiencies have experienced an unprecedented increase to reported values exceeding 19% within just four years. With the focus mainly on efficiency, the aspect of stability has so far not been thoroughly addressed. In this paper, we identify thermal stability as a fundamental weak point of perovskite solar cells, and demonstrate an elegant approach to mitigating thermal degradation by replacing the organic hole transport material with polymer-functionalized single-walled carbon nanotubes (SWNTs) embedded in an insulating polymer matrix. With this composite structure, we achieve JV scanned power-conversion efficiencies of up to 15.3% with an average efficiency of 10 ± 2%. Moreover, we observe strong retardation in thermal degradation as compared to cells employing state-of-the-art organic hole-transporting materials. In addition, the resistance to water ingress is remarkably enhanced. These are critical developments for achieving long-term stability of high-efficiency perovskite solar cells. |
| first_indexed | 2024-03-07T04:53:56Z |
| format | Journal article |
| id | oxford-uuid:d5ed9c07-87b1-4944-a4a2-0a420ff4f030 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:53:56Z |
| publishDate | 2014 |
| publisher | American Chemical Society |
| record_format | dspace |
| spelling | oxford-uuid:d5ed9c07-87b1-4944-a4a2-0a420ff4f0302022-03-27T08:29:35ZCarbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d5ed9c07-87b1-4944-a4a2-0a420ff4f030EnglishSymplectic Elements at OxfordAmerican Chemical Society2014Habisreutinger, SNLeijtens, TEperon, GStranks, SNicholas, RSnaith, HOrganic-inorganic perovskite solar cells have recently emerged at the forefront of photovoltaics research. Power conversion efficiencies have experienced an unprecedented increase to reported values exceeding 19% within just four years. With the focus mainly on efficiency, the aspect of stability has so far not been thoroughly addressed. In this paper, we identify thermal stability as a fundamental weak point of perovskite solar cells, and demonstrate an elegant approach to mitigating thermal degradation by replacing the organic hole transport material with polymer-functionalized single-walled carbon nanotubes (SWNTs) embedded in an insulating polymer matrix. With this composite structure, we achieve JV scanned power-conversion efficiencies of up to 15.3% with an average efficiency of 10 ± 2%. Moreover, we observe strong retardation in thermal degradation as compared to cells employing state-of-the-art organic hole-transporting materials. In addition, the resistance to water ingress is remarkably enhanced. These are critical developments for achieving long-term stability of high-efficiency perovskite solar cells. |
| spellingShingle | Habisreutinger, SN Leijtens, T Eperon, G Stranks, S Nicholas, R Snaith, H Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title | Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title_full | Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title_fullStr | Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title_full_unstemmed | Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title_short | Carbon nanotube/polymer composites as a highly stable hole collection layer in perovskite solar cells. |
| title_sort | carbon nanotube polymer composites as a highly stable hole collection layer in perovskite solar cells |
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