Cargando…

Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide

Tin perovskites have emerged as promising alternatives to toxic lead perovskites in next-generation photovoltaics, but their poor environmental stability remains an obstacle towards more competitive performances. Therefore, a full understanding of their decomposition processes is needed to address t...

Descripción completa

Detalles Bibliográficos
Autores principales: Lanzetta, Luis, Webb, Thomas, Zibouche, Nourdine, Liang, Xinxing, Ding, Dong, Min, Ganghong, Westbrook, Robert J. E., Gaggio, Benedetta, Macdonald, Thomas J., Islam, M. Saiful, Haque, Saif A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8121806/
https://www.ncbi.nlm.nih.gov/pubmed/33990560
http://dx.doi.org/10.1038/s41467-021-22864-z
_version_ 1783692452512661504
author Lanzetta, Luis
Webb, Thomas
Zibouche, Nourdine
Liang, Xinxing
Ding, Dong
Min, Ganghong
Westbrook, Robert J. E.
Gaggio, Benedetta
Macdonald, Thomas J.
Islam, M. Saiful
Haque, Saif A.
author_facet Lanzetta, Luis
Webb, Thomas
Zibouche, Nourdine
Liang, Xinxing
Ding, Dong
Min, Ganghong
Westbrook, Robert J. E.
Gaggio, Benedetta
Macdonald, Thomas J.
Islam, M. Saiful
Haque, Saif A.
author_sort Lanzetta, Luis
collection PubMed
description Tin perovskites have emerged as promising alternatives to toxic lead perovskites in next-generation photovoltaics, but their poor environmental stability remains an obstacle towards more competitive performances. Therefore, a full understanding of their decomposition processes is needed to address these stability issues. Herein, we elucidate the degradation mechanism of 2D/3D tin perovskite films based on (PEA)(0.2)(FA)(0.8)SnI(3) (where PEA is phenylethylammonium and FA is formamidinium). We show that SnI(4), a product of the oxygen-induced degradation of tin perovskite, quickly evolves into iodine via the combined action of moisture and oxygen. We identify iodine as a highly aggressive species that can further oxidise the perovskite to more SnI(4), establishing a cyclic degradation mechanism. Perovskite stability is then observed to strongly depend on the hole transport layer chosen as the substrate, which is exploited to tackle film degradation. These key insights will enable the future design and optimisation of stable tin-based perovskite optoelectronics.
format Online
Article
Text
id pubmed-8121806
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-81218062021-05-18 Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide Lanzetta, Luis Webb, Thomas Zibouche, Nourdine Liang, Xinxing Ding, Dong Min, Ganghong Westbrook, Robert J. E. Gaggio, Benedetta Macdonald, Thomas J. Islam, M. Saiful Haque, Saif A. Nat Commun Article Tin perovskites have emerged as promising alternatives to toxic lead perovskites in next-generation photovoltaics, but their poor environmental stability remains an obstacle towards more competitive performances. Therefore, a full understanding of their decomposition processes is needed to address these stability issues. Herein, we elucidate the degradation mechanism of 2D/3D tin perovskite films based on (PEA)(0.2)(FA)(0.8)SnI(3) (where PEA is phenylethylammonium and FA is formamidinium). We show that SnI(4), a product of the oxygen-induced degradation of tin perovskite, quickly evolves into iodine via the combined action of moisture and oxygen. We identify iodine as a highly aggressive species that can further oxidise the perovskite to more SnI(4), establishing a cyclic degradation mechanism. Perovskite stability is then observed to strongly depend on the hole transport layer chosen as the substrate, which is exploited to tackle film degradation. These key insights will enable the future design and optimisation of stable tin-based perovskite optoelectronics. Nature Publishing Group UK 2021-05-14 /pmc/articles/PMC8121806/ /pubmed/33990560 http://dx.doi.org/10.1038/s41467-021-22864-z Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Lanzetta, Luis
Webb, Thomas
Zibouche, Nourdine
Liang, Xinxing
Ding, Dong
Min, Ganghong
Westbrook, Robert J. E.
Gaggio, Benedetta
Macdonald, Thomas J.
Islam, M. Saiful
Haque, Saif A.
Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title_full Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title_fullStr Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title_full_unstemmed Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title_short Degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (IV) iodide
title_sort degradation mechanism of hybrid tin-based perovskite solar cells and the critical role of tin (iv) iodide
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8121806/
https://www.ncbi.nlm.nih.gov/pubmed/33990560
http://dx.doi.org/10.1038/s41467-021-22864-z
work_keys_str_mv AT lanzettaluis degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT webbthomas degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT zibouchenourdine degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT liangxinxing degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT dingdong degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT minganghong degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT westbrookrobertje degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT gaggiobenedetta degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT macdonaldthomasj degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT islammsaiful degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide
AT haquesaifa degradationmechanismofhybridtinbasedperovskitesolarcellsandthecriticalroleoftiniviodide