Highly ordered titanium dioxide nanostructures via a simple one-step vapor-inclusion method in block copolymer films

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dc.contributor.authorGiraud, Elsa C.
dc.contributor.authorMokarian-Tabari, Parvaneh
dc.contributor.authorToolan, Daniel T. W.
dc.contributor.authorArnold, Thomas
dc.contributor.authorSmith, Andrew J.
dc.contributor.authorHowse, Jonathan R.
dc.contributor.authorTopham, Paul D.
dc.contributor.authorMorris, Michael A.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderSemiconductor Research Corporationen
dc.date.accessioned2021-08-23T11:38:54Z
dc.date.available2021-08-23T11:38:54Z
dc.date.issued2018-06-18
dc.date.updated2021-08-23T11:29:10Z
dc.description.abstractNanostructured crystalline titanium dioxide (TiO2) finds applications in numerous fields such as photocatalysis or photovoltaics, where its physical and chemical properties depend on its shape and crystallinity. We report a simple method of fabricating TiO2 nanowires by selective area deposition of titanium tetraisopropoxide (TTIP) and water in a chemical vapor deposition-based approach at low temperature by utilizing a polystyrene-block-poly(ethylene oxide) self-assembled block copolymer thin film as a template. Parameters such as exposure time to TTIP (minutes to hours), working temperature (similar to 18 to 40 degrees C), and relative humidity (20 to 70%) were systemically investigated through grazing incidence small-angle scattering, scanning electron microscopy, and X-ray photoelectron spectroscopy and optimized for fabrication of TiO2 nanostructures. The resulting processing conditions yielded titanium dioxide nanowires with a diameter of 24 nm. An extra calcination step (500 degrees C) was introduced to burn off the remaining organic matrix and introduce phase change from amorphous to anatase in TiO2 nanowires without any loss in order.en
dc.description.sponsorshipSemiconductor Research Corporation (Grant No. 2013-OJ2444)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGiraud, E. C., Mokarian-Tabari, P., Toolan, D. T. W., Arnold, T., Smith, A. J., Howse, J. R., Topham, P. D. and Morris, M. A. (2018) 'Highly ordered titanium dioxide nanostructures via a simple one-step vapor-inclusion method in block copolymer films', ACS Applied Nano Materials, 1(7), pp. 3426-3434. doi: 10.1021/acsanm.8b00632en
dc.identifier.doi10.1021/acsanm.8b00632en
dc.identifier.eissn2574-0970
dc.identifier.endpage3434en
dc.identifier.issued7en
dc.identifier.journaltitleACS Applied Nano Materialsen
dc.identifier.startpage3426en
dc.identifier.urihttps://hdl.handle.net/10468/11768
dc.identifier.volume1en
dc.language.isoenen
dc.publisherACS Publicationsen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2278/IE/Advanced Materials and BioEngineering Research Centre (AMBER)/en
dc.rights© 2018, American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Nano Materials, after technical editing by the publisher. To access the final edited and published work see: https://doi.org/10.1021/acsanm.8b00632en
dc.subjectTitanium dioxideen
dc.subjectTitanium tetraisopropoxideen
dc.subjectBlock copolymeren
dc.subjectPolymer templating cen
dc.subjectChemical vapor depositionen
dc.subjectGISAXSen
dc.titleHighly ordered titanium dioxide nanostructures via a simple one-step vapor-inclusion method in block copolymer filmsen
dc.typeArticle (peer-reviewed)en
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