Supercritical fluid processing of mesoporous crystalline TiO2 thin films for highly efficient dye-sensitized solar cells

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dc.contributor.authorWei, Mingdeng
dc.contributor.authorWang, Kaixue
dc.contributor.authorYanagida, Masatoshi
dc.contributor.authorSugihara, Hideki
dc.contributor.authorMorris, Michael A.
dc.contributor.authorHolmes, Justin D.
dc.contributor.authorZhou, Haoshen
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2020-01-23T16:23:58Z
dc.date.available2020-01-23T16:23:58Z
dc.date.issued2007-07-19
dc.date.updated2020-01-22T21:06:53Z
dc.description.abstractIn this study, a high light-to-electricity conversion efficiency of 5.14% was achieved by applying a TiO2 thin film with a thickness of 1.87 µm as an electrode material under an AM 1.5 solar light (100 mW cm−2). This high efficiency can be attributed to post-treatment by the supercritical fluid process and the addition of nanoparticles to the thin film. Supercritical fluid treatment is shown to significantly enhance the thermal stability of these thin films. Thus, the high porosity of the treated films was maintained even upon calcination at a high temperature. Additionally, the addition of crystalline light scattering nanoparticles in the thin film not only increases the crystallinity of the thin films but also ensures capture of the incident light and increases the efficiency of light harvesting. The thin film with well-preserved mesopores among the nanoparticles can capture the incident light efficiently and further increase efficiency of light harvesting, which leads to the remarkably high light-to-electricity conversion efficiency.en
dc.description.sponsorshipScience Foundation Ireland (Grant number: 03/IN3/I375)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationWei, M., Wang, K., Yanagida, M., Sugihara, H., Morris, M. A., Holmes, J. D. and Zhou, H. (2007) 'Supercritical fluid processing of mesoporous crystalline TiO2 thin films for highly efficient dye-sensitized solar cells', Journal of Materials Chemistry, 17(37), pp. 3888-3893. doi: 10.1039/B706569Hen
dc.identifier.doi10.1039/B706569Hen
dc.identifier.endpage3893en
dc.identifier.issn0959-9428
dc.identifier.issued37en
dc.identifier.journaltitleJournal of Materials Chemistryen
dc.identifier.startpage3888en
dc.identifier.urihttps://hdl.handle.net/10468/9571
dc.identifier.volume17en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2007/jm/b706569h
dc.rights© The Royal Society of Chemistry 2007en
dc.subjectThin filmsen
dc.subjectCrystalline materialsen
dc.subjectNanoparticlesen
dc.subjectSolar cellsen
dc.subjectSupercritical fluidsen
dc.subjectThermodynamic stabilityen
dc.subjectTitanium dioxideen
dc.subjectDye-sensitized solar cellsen
dc.subjectIncident lighten
dc.subjectSupercritical fluid processingen
dc.titleSupercritical fluid processing of mesoporous crystalline TiO2 thin films for highly efficient dye-sensitized solar cellsen
dc.typeArticle (peer-reviewed)en
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