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Article: Surface morphology induced localized electric field and piezoresponse enhancement in nanostructured thin films

TitleSurface morphology induced localized electric field and piezoresponse enhancement in nanostructured thin films
Authors
Sriram, SharathBhaskaran, MadhuAhluwalia, RajeevNguyen, Thach G.Ng, NathanielSrolovitz, David J.Kalantar-Zadeh, KouroshMitchell, Arnan
Keywordselectric field enhancement
surface roughness
piezoresponse
enhancement factor
phase field simulations
piezoelectric thin films
Issue Date2011
Citation
ACS Nano, 2011, v. 5, n. 2, p. 1067-1072 How to Cite?
DOI: http://dx.doi.org/10.1021/nn103561u
AbstractNanostructured piezoelectric and ferroelectric thin films are being increasingly used in sensing and actuating microdevices. In this work, we report the experimental discovery of localized electric field enhancement in nanocolumnar piezoelectric thin films and its significant impact on piezoresponse. The magnitude of electric field enhancement is associated with nonflat surface morphologies and is in agreement with theoretical and finite element models. The influence of this surface morphology induced enhancement on piezoresponse is demonstrated using phase field simulations, which also illustrates surface morphology induced strain enhancement. The observed enhancement can be effectively harnessed to improve the sensitivity of related piezoelectric thin film applications. © 2011 American Chemical Society.
Persistent Identifierhttp://hdl.handle.net/10722/303367
ISSN
1936-0851
2023 Impact Factor: 15.8
2023 SCImago Journal Rankings: 4.593
ISI Accession Number ID
WOS:000287553800044

 

DC FieldValueLanguage
dc.contributor.authorSriram, Sharath-
dc.contributor.authorBhaskaran, Madhu-
dc.contributor.authorAhluwalia, Rajeev-
dc.contributor.authorNguyen, Thach G.-
dc.contributor.authorNg, Nathaniel-
dc.contributor.authorSrolovitz, David J.-
dc.contributor.authorKalantar-Zadeh, Kourosh-
dc.contributor.authorMitchell, Arnan-
dc.date.accessioned2021-09-15T08:25:10Z-
dc.date.available2021-09-15T08:25:10Z-
dc.date.issued2011-
dc.identifier.citationACS Nano, 2011, v. 5, n. 2, p. 1067-1072-
dc.identifier.issn1936-0851-
dc.identifier.urihttp://hdl.handle.net/10722/303367-
dc.description.abstractNanostructured piezoelectric and ferroelectric thin films are being increasingly used in sensing and actuating microdevices. In this work, we report the experimental discovery of localized electric field enhancement in nanocolumnar piezoelectric thin films and its significant impact on piezoresponse. The magnitude of electric field enhancement is associated with nonflat surface morphologies and is in agreement with theoretical and finite element models. The influence of this surface morphology induced enhancement on piezoresponse is demonstrated using phase field simulations, which also illustrates surface morphology induced strain enhancement. The observed enhancement can be effectively harnessed to improve the sensitivity of related piezoelectric thin film applications. © 2011 American Chemical Society.-
dc.languageeng-
dc.relation.ispartofACS Nano-
dc.subjectelectric field enhancement-
dc.subjectsurface roughness-
dc.subjectpiezoresponse-
dc.subjectenhancement factor-
dc.subjectphase field simulations-
dc.subjectpiezoelectric thin films-
dc.titleSurface morphology induced localized electric field and piezoresponse enhancement in nanostructured thin films-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/nn103561u-
dc.identifier.pmid21271737-
dc.identifier.scopuseid_2-s2.0-79951860189-
dc.identifier.volume5-
dc.identifier.issue2-
dc.identifier.spage1067-
dc.identifier.epage1072-
dc.identifier.eissn1936-086X-
dc.identifier.isiWOS:000287553800044-

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