Photoluminescent electrospun polymeric nanofibers incorporating germanium nanocrystals

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buir.contributor.authorUyar, Tamer
buir.contributor.orcidUyar, Tamer|0000-0002-3989-4481
dc.citation.epage1267en_US
dc.citation.issueNumber9en_US
dc.citation.spage1262en_US
dc.citation.volumeNumber73en_US
dc.contributor.authorOrtaç, B.en_US
dc.contributor.authorKayaci, F.en_US
dc.contributor.authorVural, H. A.en_US
dc.contributor.authorDeniz, A. E.en_US
dc.contributor.authorUyar, Tameren_US
dc.date.accessioned2016-02-08T09:34:39Z
dc.date.available2016-02-08T09:34:39Z
dc.date.issued2013en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe photoluminescent germanium nanocrystals (Ge-NCs) were successfully incorporated into electrospun polymeric nanofiber matrix in order to develop photoluminescent nanofibrous composite web. In the first step, the synthesis of Ge-NCs was achieved by nanosecond pulsed laser ablation of bulk germanium wafer immersed in organic liquid. The size, the structural and the chemical characteristics of Ge-NCs investigated by TEM, XPS, XRD and Raman spectroscopy revealed that the Ge-NCs were highly pure and highly crystalline having spherical shape within 3-20 nm particle size distribution. In the second step, Ge-NCs were mixed with polyvinyl alcohol (PVA) polymer solution, and then, Ge-NC/PVA nanofibers were obtained via electrospinning technique. The electrospinning of Ge-NCs/PVA nanoweb composite structure was successful and bead-free Ge-NCs/PVA nanofibers having average fiber diameter of 185 ± 40 nm were obtained. The STEM analysis of the electrospun Ge-NCs/PVA nanofibers elucidated that the Ge-NCs were distributed homogeneously in the polymeric nanofiber matrix. The UV-Vis absorption and photoluminescence spectroscopy studies indicated the quantum confinement effect of Ge-NCs on the optical properties of the electrospun Ge-NCs/PVA nanoweb. © 2013 Elsevier Ltd. All rights reserved.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T09:34:39Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2013en
dc.identifier.doi10.1016/j.reactfunctpolym.2013.06.007en_US
dc.identifier.issn1381-5148
dc.identifier.urihttp://hdl.handle.net/11693/20758
dc.language.isoEnglishen_US
dc.publisherElsevieren_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.reactfunctpolym.2013.06.007en_US
dc.source.titleReactive and Functional Polymersen_US
dc.subjectElectrospinningen_US
dc.subjectNanofiberen_US
dc.subjectGermanium nanocrystalsen_US
dc.subjectOptical propertiesen_US
dc.subjectPolymersen_US
dc.titlePhotoluminescent electrospun polymeric nanofibers incorporating germanium nanocrystalsen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)