Stability of ultrathin nanocomposite polymer films controlled by the embedding of gold nanoparticles.

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dc.contributor.authorAmarandei, George
dc.contributor.authorClancy, Ian
dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorArshak, Arousian
dc.contributor.authorCorcoran, David
dc.contributor.funderSeventh Framework Programmeen
dc.contributor.funderFP7 People: Marie-Curie Actionsen
dc.contributor.funderEuropean Commissionen
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderH2020
dc.date.accessioned2018-05-11T10:55:31Z
dc.date.available2018-05-11T10:55:31Z
dc.date.issued2014-11-19
dc.date.updated2018-05-03T08:43:29Z
dc.description.abstractThin and ultrathin polymer films combined with nanoparticles (NPs) are of significant interest as they are used in a host of industrial applications. In this paper we describe the stability of such films (hpoly ≤ 30 nm) to dewetting, specifically, how the development of a spinodal instability in a composite NP–polymer layer is controlled by the embedding of Au NPs. At working temperatures (T = 170 °C) above the polymer glass transition temperature (Tg ≈ 100 °C) the absence of Au NPs leads to film rupture by nucleation dewetting, while their presence over a large surface area enhances the development of a spinodal instability without destroying the film continuity. When the NPs embed, the surface undulations are suppressed. The dynamics change from an unstable to a stable state, and the thin composite NP–polymer layer returns to a flat configuration, while the wavelength of the pattern remains constant. Moreover, we demonstrate from a thermodynamic perspective that NPs will remain on the surface or embed in the polymer film depending on their free energy, which is determined by the NP interactions with the underlying polymer, the native SiOx layer, and the Si substrate.en
dc.description.sponsorshipEuropean Commission (MRTN-CT-2004005728 (PATTERNS)); Science Foundation Ireland (National Access Programme (Project NAP 200)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationAmarandei, G., Clancy, I., O’Dwyer, C., Arshak, A. and Corcoran, D. (2014) 'Stability of Ultrathin Nanocomposite Polymer Films Controlled by the Embedding of Gold Nanoparticles', ACS Applied Materials & Interfaces, 6(23), pp. 20758-20767. doi: 10.1021/am5049543en
dc.identifier.doi10.1021/am5049543
dc.identifier.endpage20767en
dc.identifier.issn1944-8244
dc.identifier.issued23en
dc.identifier.journaltitleACS Applied Materials & Interfacesen
dc.identifier.startpage20758en
dc.identifier.urihttps://hdl.handle.net/10468/6084
dc.identifier.volume6en
dc.language.isoenen
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP3::PEOPLE/239426/EU/Control and Application of Field Induced Polymer Patterns/POLYPATTen
dc.relation.urihttp://pubs.acs.org/doi/pdf/10.1021/am5049543
dc.rights© 2014 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/pdf/10.1021/am5049543en
dc.subjectDewettingen
dc.subjectEmbeddingen
dc.subjectNanoparticlesen
dc.subjectThin polymer filmsen
dc.titleStability of ultrathin nanocomposite polymer films controlled by the embedding of gold nanoparticles.en
dc.typeArticle (peer-reviewed)en
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