Structural coloring in large scale core-shell nanowires

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buir.contributor.authorBayındır, Mehmet
dc.citation.epage4665en_US
dc.citation.issueNumber11en_US
dc.citation.spage4661en_US
dc.citation.volumeNumber11en_US
dc.contributor.authorKhudiyev, T.en_US
dc.contributor.authorOzgur E.en_US
dc.contributor.authorYaman, M.en_US
dc.contributor.authorBayındır, Mehmeten_US
dc.date.accessioned2016-02-08T09:50:12Z
dc.date.available2016-02-08T09:50:12Z
dc.date.issued2011en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe demonstrated two complementary size-dependent structural coloring mechanisms, interference and scattering, in indefinitely long core-shell nanowire arrays. The unusual nanostructures are comprised of an amorphous semiconducting core and a polymer shell layer with disparate refractive indices but with similar thermomechanical properties. Core-shell nanowires are mass produced from a macroscopic semiconductor rod by using a new top-to-bottom fabrication approach based on thermal size reduction. Nanostructures with diameters from 30 to 200 nm result in coloration that spans the whole visible spectrum via resonant Mie scattering. Nanoshell coloration based on thin film interference is proposed as a structural coloration mechanism which becomes dominant for nanowires having 700-1200 nm diameter. Controlled color generation in any part of visible and infrared spectral regions can be achieved by the simple scaling down procedure. Spectral color generation in mass-produced uniform core-shell nanowire arrays paves the way for applications such as spectral authentication at nanoscale, light-scattering ingredients in paints and cosmetics, large-area devices, and infrared shielding. © 2011 American Chemical Society.en_US
dc.identifier.doi10.1021/nl2022114en_US
dc.identifier.issn1530-6984
dc.identifier.urihttp://hdl.handle.net/11693/21720
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/nl2022114en_US
dc.source.titleNano Lettersen_US
dc.subjectTop-to-bottom approachen_US
dc.subjectThermal size reductionen_US
dc.subjectCore-shell nanowiresen_US
dc.subjectThin-film interferenceen_US
dc.subjectStructural coloringen_US
dc.subjectResonant Mie scatteringen_US
dc.subjectcoloren_US
dc.titleStructural coloring in large scale core-shell nanowiresen_US
dc.typeArticleen_US
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Institute of Materials Science and Nanotechnology (UNAM)
Department of Physics