Journal article
Oxygen degradation in mesoporous Al2O3/CH3NH3PbI3-xClx perovskite solar cells: kinetics and mechanisms
- Abstract:
- The rapid pace of development for hybrid perovskite photovoltaics has recently resulted in promising figures of merit being obtained with regard to device stability. Rather than relying upon expensive barrier materials, realizing market‐competitive lifetimes is likely to require the development of intrinsically stable devices, and to this end accelerated aging tests can help identify degradation mechanisms that arise over the long term. Here, oxygen‐induced degradation of archetypal perovskite solar cells under operation is observed, even in dry conditions. With prolonged aging, this process ultimately drives decomposition of the perovskite. It is deduced that this is related to charge build‐up in the perovskite layer, and it is shown that by efficiently extracting charge this degradation can be mitigated. The results confirm the importance of high charge‐extraction efficiency in maximizing the tolerance of perovskite solar cells to oxygen.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 651.0KB, Terms of use)
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- Publisher copy:
- 10.1002/aenm.201600014
Authors
+ Oxford Photovoltaics Ltd
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- Funding agency for:
- Eperon, G
- Grant:
- Nanotechnology KTN CASE award
+ Engineering and Physical Sciences Research Council
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- Funding agency for:
- Eperon, G
- Grant:
- Nanotechnology KTN CASE award
- Supergen Supersolar Consortium (EP/J017361/1)
+ European Union
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- Grant:
- Seventh Framework Program [FP7 2007-2003] under grant agreement 604032 of the MESO project
- Publisher:
- Wiley
- Journal:
- Advanced Energy Materials More from this journal
- Volume:
- 6
- Issue:
- 13
- Article number:
- 1600014
- Publication date:
- 2016-04-26
- DOI:
- EISSN:
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1614-6832
- ISSN:
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1614-6840
- Keywords:
- Pubs id:
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pubs:620326
- UUID:
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uuid:1a9efff7-28d1-4f1c-b042-a325c8abb6b6
- Local pid:
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pubs:620326
- Source identifiers:
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620326
- Deposit date:
-
2016-08-05
Terms of use
- Copyright holder:
- Pearson et al
- Copyright date:
- 2016
- Notes:
-
Copyright © 2016 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
- Licence:
- CC Attribution (CC BY)
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