Insights into corrosion in dye solar cells

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Miettunen, Kati
dc.contributor.author Etula, Jarkko
dc.contributor.author Saukkonen, Tapio
dc.contributor.author Jouttijärvi, Sami
dc.contributor.author Halme, Janne
dc.contributor.author Romu, Jyrki
dc.contributor.author Lund, Peter
dc.date.accessioned 2016-09-03T09:01:19Z
dc.date.available 2016-09-03T09:01:19Z
dc.date.issued 2015
dc.identifier.citation Miettunen, Kati & Etula, Jarkko & Saukkonen, Tapio & Jouttijärvi, Sami & Halme, Janne & Romu, Jyrki & Lund, Peter. 2015. Insights into corrosion in dye solar cells. Progress in Photovoltaics: Research and Applications. Volume 23, Issue 8. 1045-1056. ISSN 1062-7995 (printed). DOI: 10.1002/pip.2534. en
dc.identifier.issn 1062-7995 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/21828
dc.description.abstract The main issue in using low cost metals in dye solar cells is the corrosion caused by the liquid electrolyte. Contrary to typical applications of metals, the adverse effects of corrosion in dye solar cells are related to irreversible depletion of charge carriers from the electrolyte rather than consumption of the metal itself. It is calculated that the penetration rate due to corrosion should not exceed 10−4 mpy (a couple of nanometers per year) to ensure device lifetime longer than 1 year. This is 10 000 times slower rate than what is considered to be a general benchmark value for very low corrosion rate in the field of corrosion science and has a major effect on how corrosion should be investigated in the case of dye solar cells. Different methods, their applicability, and limitations to investigate corrosion in dye solar cells are evaluated here. The issue with most techniques is that they can detect metals that are clearly corroding, but they have significant limitations in proving a metal stable. Our investigation shows that the most reliable information on corrosion is obtained from complete dye solar cells that are exposed to working conditions. A combination of color analysis of the electrolyte to such measurement is proposed as a means to extrapolate future performance of the cells and estimate potential lifetimes of the dye solar cells in regards to corrosion. en
dc.format.extent 1045-1056
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Wiley-Blackwell en
dc.relation.ispartofseries Progress in Photovoltaics: Research and Applications en
dc.relation.ispartofseries Volume 23, Issue 8
dc.rights © 2014 Wiley-Blackwell. This is the peer reviewed version of the following article: Miettunen, Kati & Etula, Jarkko & Saukkonen, Tapio & Jouttijärvi, Sami & Halme, Janne & Romu, Jyrki & Lund, Peter. 2015. Insights into corrosion in dye solar cells. Progress in Photovoltaics: Research and Applications. Volume 23, Issue 8. 1045-1056. ISSN 1062-7995 (printed). DOI: 10.1002/pip.2534., which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/pip.2534/full. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. en
dc.subject.other Physics en
dc.title Insights into corrosion in dye solar cells en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder Wiley-Blackwell
dc.contributor.school Perustieteiden korkeakoulu fi
dc.contributor.school School of Science en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.contributor.department Department of Applied Physics en
dc.subject.keyword metal en
dc.subject.keyword stability en
dc.subject.keyword redox couple en
dc.subject.keyword corrosion en
dc.subject.keyword dye-sensitized en
dc.identifier.urn URN:NBN:fi:aalto-201602051253
dc.type.dcmitype text en
dc.identifier.doi 10.1002/pip.2534
dc.type.version Post print en


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