Low Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolyte

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMiettunen, Kati
dc.contributor.authorJouttijärvi, Sami
dc.contributor.authorJiang, Roger
dc.contributor.authorSaukkonen, Tapio
dc.contributor.authorRomu, Jyrki
dc.contributor.authorHalme, Janne
dc.contributor.authorLund, Peter
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2016-02-05T10:01:19Z
dc.date.available2016-02-05T10:01:19Z
dc.date.issued2014
dc.description.abstractCheap ferritic stainless steel is applied here as the counter electrode substrate in dye sensitized solar cells with cobalt complex electrolyte. A 5.0% efficiency was reached with these type of cells which is more than 2.5 times higher compared to previously reported devices with metal counter electrode and cobalt complex electrolyte. The electrochemical impedance spectra analysis showed that the best cells with the ferritic steel counter electrode had as low charge transfer resistance (3.6 Ωcm2) as the reference glass cells with the same electrolyte. While in previous studies many metals have corroded in the cobalt complex electrolyte, the stability analysis including scanning electron microscope imaging of the aged electrodes suggested that the ferritic stainless steel substrates did not corrode in the electrolyte. Hence ferritic stainless steel appears as a possible alternative counter electrode in dye solar cells with cobalt electrolyte in terms of cost, performance and stability.en
dc.description.versionPeer revieweden
dc.format.extentH138-H143
dc.format.mimetypeapplication/pdfen
dc.identifier.citationMiettunen, Kati & Jouttijärvi, Sami & Jiang, Roger & Saukkonen, Tapio & Romu, Jyrki & Halme, Janne & Lund, Peter. 2014. Low Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolyte. Journal of the Electrochemical Society. Volume 161, Issue 3. H138-H143. ISSN 0013-4651 (printed). DOI: 10.1149/2.054403jes.en
dc.identifier.doi10.1149/2.054403jes
dc.identifier.issn0013-4651 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/19610
dc.identifier.urnURN:NBN:fi:aalto-201602041251
dc.language.isoenen
dc.publisherThe Electrochemical Societyen
dc.relation.ispartofseriesJournal of the Electrochemical Societyen
dc.relation.ispartofseriesVolume 161, Issue 3
dc.rights© 2014 The Electrochemical Society. This is the post print version of the following article: Miettunen, Kati & Jouttijärvi, Sami & Jiang, Roger & Saukkonen, Tapio & Romu, Jyrki & Halme, Janne & Lund, Peter. 2014. Low Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolyte. Journal of the Electrochemical Society. Volume 161, Issue 3. H138-H143. ISSN 0013-4651 (printed). DOI: 10.1149/2.054403jes., which has been published in final form at: http://jes.ecsdl.org/content/161/3/H138en
dc.rights.holderThe Electrochemical Society
dc.subject.keyworddye solar cellen
dc.subject.keywordmetal substrateen
dc.subject.keywordphotovoltaic cellen
dc.subject.keywordcorrosionen
dc.subject.otherPhysicsen
dc.titleLow Cost Ferritic Stainless Steel in Dye Sensitized Solar Cells with Cobalt Complex Electrolyteen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionPost printen
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