Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells

Organometal trihalide perovskite based solar cells have exhibited the highest efficiencies to-date when incorporated into mesostructured composites. However, thin solid films of a perovskite absorber should be capable of operating at the highest efficiency in a simple planar heterojunction configura...

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Main Authors: Eperon, G, Burlakov, V, Docampo, P, Goriely, A, Snaith, H
Format: Journal article
Published: Wiley 2013
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author Eperon, G
Burlakov, V
Docampo, P
Goriely, A
Snaith, H
author_facet Eperon, G
Burlakov, V
Docampo, P
Goriely, A
Snaith, H
author_sort Eperon, G
collection OXFORD
description Organometal trihalide perovskite based solar cells have exhibited the highest efficiencies to-date when incorporated into mesostructured composites. However, thin solid films of a perovskite absorber should be capable of operating at the highest efficiency in a simple planar heterojunction configuration. Here, it is shown that film morphology is a critical issue in planar heterojunction CH3NH3PbI3-xCl x solar cells. The morphology is carefully controlled by varying processing conditions, and it is demonstrated that the highest photocurrents are attainable only with the highest perovskite surface coverages. With optimized solution based film formation, power conversion efficiencies of up to 11.4% are achieved, the first report of efficiencies above 10% in fully thin-film solution processed perovskite solar cells with no mesoporous layer. © 2013 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.
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spelling oxford-uuid:c71608e0-a544-4d28-bb73-e87316f9191e2022-03-27T06:42:31ZMorphological control for high performance, solution-processed planar heterojunction perovskite solar cellsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c71608e0-a544-4d28-bb73-e87316f9191eSymplectic Elements at OxfordWiley2013Eperon, GBurlakov, VDocampo, PGoriely, ASnaith, HOrganometal trihalide perovskite based solar cells have exhibited the highest efficiencies to-date when incorporated into mesostructured composites. However, thin solid films of a perovskite absorber should be capable of operating at the highest efficiency in a simple planar heterojunction configuration. Here, it is shown that film morphology is a critical issue in planar heterojunction CH3NH3PbI3-xCl x solar cells. The morphology is carefully controlled by varying processing conditions, and it is demonstrated that the highest photocurrents are attainable only with the highest perovskite surface coverages. With optimized solution based film formation, power conversion efficiencies of up to 11.4% are achieved, the first report of efficiencies above 10% in fully thin-film solution processed perovskite solar cells with no mesoporous layer. © 2013 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.
spellingShingle Eperon, G
Burlakov, V
Docampo, P
Goriely, A
Snaith, H
Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title_full Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title_fullStr Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title_full_unstemmed Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title_short Morphological control for high performance, solution-processed planar heterojunction perovskite solar cells
title_sort morphological control for high performance solution processed planar heterojunction perovskite solar cells
work_keys_str_mv AT eperong morphologicalcontrolforhighperformancesolutionprocessedplanarheterojunctionperovskitesolarcells
AT burlakovv morphologicalcontrolforhighperformancesolutionprocessedplanarheterojunctionperovskitesolarcells
AT docampop morphologicalcontrolforhighperformancesolutionprocessedplanarheterojunctionperovskitesolarcells
AT gorielya morphologicalcontrolforhighperformancesolutionprocessedplanarheterojunctionperovskitesolarcells
AT snaithh morphologicalcontrolforhighperformancesolutionprocessedplanarheterojunctionperovskitesolarcells