Fabrication of arrays of lead zirconate titanate (PZT) nanodots via block copolymer self-assembly

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dc.contributor.author Varghese, Justin M.
dc.contributor.author Ghoshal, Tandra
dc.contributor.author Deepak, Nitin
dc.contributor.author O'Regan, Colm
dc.contributor.author Whatmore, Roger W.
dc.contributor.author Morris, Michael A.
dc.contributor.author Holmes, Justin D.
dc.date.accessioned 2016-02-10T17:06:59Z
dc.date.available 2016-02-10T17:06:59Z
dc.date.issued 2013-02-18
dc.identifier.citation VARGHESE, J., GHOSHAL, T., DEEPAK, N., O’REGAN, C., WHATMORE, R. W., MORRIS, M. A. & HOLMES, J. D. 2013. Fabrication of Arrays of Lead Zirconate Titanate (PZT) Nanodots via Block Copolymer Self-Assembly. Chemistry of Materials, 25, 1458-1463. http://dx.doi.org/10.1021/cm303759r en
dc.identifier.volume 25 en
dc.identifier.issued 8 en
dc.identifier.startpage 1458 en
dc.identifier.endpage 1463 en
dc.identifier.issn 0897-4756
dc.identifier.uri http://hdl.handle.net/10468/2272
dc.identifier.doi 10.1021/cm303759r
dc.description.abstract This Article presents a simple methodology for the fabrication of two-dimensional arrays of lead zirconate titanate (PZT) nanodots on n-doped Si substrates via the directed self-assembly of PS-b-PEO block copolymer templates. The approach produces highly ordered PZT nanodot patterns, with lateral widths and heights as small as 20 and 10 nm, respectively, and a coverage density as high as ∼68 × 109 nanodots cm–2. The existence of a perovskite phase in the nanodots was confirmed by X-ray diffraction and X-ray photoelectron spectroscopy. The piezo-amplitude and ferroelectric domain response obtained from the nanodots, through piezoresponse force microscopy, confirmed the presence of ferroelectricity in the PZT arrays. Notably, PZT nanodots with a thickness ∼10 nm, which is close to the critical size limit of PZT, showed ferroelectric behavior. The presence of a multi-a/c domain structure in the nanodots was attributed to their polycrystalline nature. en
dc.description.sponsorship Science Foundation Ireland (SFI Grants: 07/SRC/I1172 and 08/CE/I1432); Higher Education Authority (Program for Research in Third Level Institutions (2007-2011) via the INSPIRE program) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Chemical Society en
dc.relation.uri http://pubs.acs.org/doi/pdf/10.1021/cm303759r
dc.rights © 2013 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in Chemistry of Materials, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/pdf/10.1021/cm303759r en
dc.subject Block copolymer en
dc.subject Nanodot en
dc.subject PFM en
dc.subject Piezoelectric en
dc.subject PZT en
dc.subject Block copolymer self-assembly en
dc.subject Lead zirconate titanate en
dc.subject Nanodots en
dc.subject Piezoresponse force microscopy en
dc.subject PS-b-PEO block copolymers en
dc.subject Semiconducting lead compounds en
dc.subject Ferroelectric materials en
dc.subject Ferroelectricity en
dc.subject Nanostructured materials en
dc.subject Photoelectrons en
dc.subject Scanning probe microscopy en
dc.subject Self assembly en
dc.subject X-ray diffraction en
dc.subject X-ray photoelectron spectroscopy en
dc.title Fabrication of arrays of lead zirconate titanate (PZT) nanodots via block copolymer self-assembly en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2013-08-20T17:41:33Z
dc.description.version Accepted Version en
dc.internal.rssid 208092051
dc.contributor.funder Higher Education Authority en
dc.contributor.funder Science Foundation Ireland en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Chemistry of Materials en
dc.internal.copyrightchecked No. !!CORA!! Accepted Version + 12 Months embargo + set statement. http://pubs.acs.org/userimages/ContentEditor/1285231362937/jpa_user_guide.pdf page 3-4 en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress j.holmes@ucc.ie en

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