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Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells

Daniel Bryant, Nicholas Aristidou, Sebastian Pont, Irene Sanchez-Molina, Thana Chotchunangatchaval, Scot Wheeler, James Durrant Orcid Logo, Saif A. Haque

Energy & Environmental Science, Volume: 9, Issue: 5, Pages: 1655 - 1660

Swansea University Authors: Daniel Bryant, James Durrant Orcid Logo

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DOI (Published version): 10.1039/c6ee00409a

Abstract

Here, we demonstrate that light and oxygen-induced degradation is the main reason for the low operational stability of methylammonium lead triiodide (MeNH3PbI3) perovskite solar cells exposed to ambient conditions. When exposed to both light and dry air, unencapsulated MeNH3PbI3 solar cells rapidly...

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Published in: Energy & Environmental Science
ISSN: 1754-5692 1754-5706
Published: 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa40519
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spelling 2023-02-14T15:40:50.3291957 v2 40519 2018-05-31 Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells aff7482847d3156c4437cd912e0bbd3e Daniel Bryant Daniel Bryant true false f3dd64bc260e5c07adfa916c27dbd58a 0000-0001-8353-7345 James Durrant James Durrant true false 2018-05-31 EEN Here, we demonstrate that light and oxygen-induced degradation is the main reason for the low operational stability of methylammonium lead triiodide (MeNH3PbI3) perovskite solar cells exposed to ambient conditions. When exposed to both light and dry air, unencapsulated MeNH3PbI3 solar cells rapidly degrade on timescales of minutes to a few hours. This rapid degradation is also observed under electrically bias driven current flow in the dark in the presence of O2. In contrast, significantly slower degradation is observed when the MeNH3PbI3 devices are exposed to moisture alone (e.g. 85% relative humidity in N2). We show that this light and oxygen induced degradation can be slowed down by the use of interlayers that are able to remove electrons from the perovskite film before they can react with oxygen to form O2−. These observations demonstrate that the operational stability of electronic and optoelectronic devices that exploit the electron transporting properties of MeNH3PbI3 will be critically dependent upon the use of suitable barrier layers and device configurations to mitigate the oxygen sensitivity of this remarkable material. Journal Article Energy & Environmental Science 9 5 1655 1660 1754-5692 1754-5706 1 5 2016 2016-05-01 10.1039/c6ee00409a COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University 2023-02-14T15:40:50.3291957 2018-05-31T09:33:49.2794194 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Daniel Bryant 1 Nicholas Aristidou 2 Sebastian Pont 3 Irene Sanchez-Molina 4 Thana Chotchunangatchaval 5 Scot Wheeler 6 James Durrant 0000-0001-8353-7345 7 Saif A. Haque 8 40519__17474__2e0d163f58cf44b0b08975a87cf35510.pdf 40519.pdf 2020-06-11T12:22:55.4165376 Output 2385315 application/pdf Version of Record true Released under the terms of a Creative Commons Attribution License (CC-BY). true eng http://creativecommons.org/licenses/by/3.0/
title Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
spellingShingle Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
Daniel Bryant
James Durrant
title_short Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
title_full Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
title_fullStr Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
title_full_unstemmed Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
title_sort Light and oxygen induced degradation limits the operational stability of methylammonium lead triiodide perovskite solar cells
author_id_str_mv aff7482847d3156c4437cd912e0bbd3e
f3dd64bc260e5c07adfa916c27dbd58a
author_id_fullname_str_mv aff7482847d3156c4437cd912e0bbd3e_***_Daniel Bryant
f3dd64bc260e5c07adfa916c27dbd58a_***_James Durrant
author Daniel Bryant
James Durrant
author2 Daniel Bryant
Nicholas Aristidou
Sebastian Pont
Irene Sanchez-Molina
Thana Chotchunangatchaval
Scot Wheeler
James Durrant
Saif A. Haque
format Journal article
container_title Energy & Environmental Science
container_volume 9
container_issue 5
container_start_page 1655
publishDate 2016
institution Swansea University
issn 1754-5692
1754-5706
doi_str_mv 10.1039/c6ee00409a
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description Here, we demonstrate that light and oxygen-induced degradation is the main reason for the low operational stability of methylammonium lead triiodide (MeNH3PbI3) perovskite solar cells exposed to ambient conditions. When exposed to both light and dry air, unencapsulated MeNH3PbI3 solar cells rapidly degrade on timescales of minutes to a few hours. This rapid degradation is also observed under electrically bias driven current flow in the dark in the presence of O2. In contrast, significantly slower degradation is observed when the MeNH3PbI3 devices are exposed to moisture alone (e.g. 85% relative humidity in N2). We show that this light and oxygen induced degradation can be slowed down by the use of interlayers that are able to remove electrons from the perovskite film before they can react with oxygen to form O2−. These observations demonstrate that the operational stability of electronic and optoelectronic devices that exploit the electron transporting properties of MeNH3PbI3 will be critically dependent upon the use of suitable barrier layers and device configurations to mitigate the oxygen sensitivity of this remarkable material.
published_date 2016-05-01T03:51:34Z
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score 11.01628

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