Enhanced photoanisotropic response in azopolymer doped with elongated goethite nanoparticles

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creativework.publisherInstitute of Physics Publishinghelen.craven@iop.orgen
dc.contributor.authorNedelchev L.
dc.contributor.authorNazarova D.
dc.contributor.authorBerberova N.
dc.contributor.authorMateev G.
dc.contributor.authorKostadinova D.
dc.contributor.authorMariño-Fernández R.
dc.contributor.authorSalgueiriño V.
dc.contributor.authorSchmool D.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:48:31Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:48:31Z
dc.date.issued2016-04-07
dc.description.abstractWe present a study of the photoinduced birefringence in nanocomposite films of an azopolymer (PAZO) doped with goethite (a-FeOOH, a characteristic antiferromagnetic material) nanoparticles (NPs). The NPs had an elongated shape with a size 15×150 nm, i.e., a ratio of 1:10. Samples were prepared with different concentrations of the NPs in the azopolymer varying from 0% (undoped azopolymer film) to 15 wt %. An unusual dependence of the birefringence on the concentration was observed - two peaks of enhancement at 1 % and at 10 % concentration. Our previous studies on ZnO and SiO2 NP have indicated only one peak of increase at low concentrations - 0.5 wt % and 2 wt %, respectively. This effect could be related to the elongated shape of the nanoparticles and the presence of two characteristic NPs sizes - 15 and 150 nm. Moreover, the birefringence increase for the samples with 10 wt % NPs concentration (compared with the non-doped samples) was rather significant - nearly 70%.
dc.identifier.doi10.1088/1742-6596/700/1/012031
dc.identifier.issn1742-6596
dc.identifier.issn1742-6588
dc.identifier.scopusSCOPUS_ID:84964848636en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/377
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84964848636&origin=inward
dc.titleEnhanced photoanisotropic response in azopolymer doped with elongated goethite nanoparticles
dc.typeConference Paper
oaire.citation.issue1
oaire.citation.volume700
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