Effect of InP/ZnS quantum dots aggregation on the kinetics of birefringence recorded in thin azopolymer composite films

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creativework.keywordscomposite materials, photoinduced birefringence, quantum dots aggregation, quantum dots sensitized azo polymers
creativework.publisherInstitute of Physicsen
dc.contributor.authorStoilova A.
dc.contributor.authorDimov D.
dc.contributor.authorTrifonova Y.
dc.contributor.authorMateev G.
dc.contributor.authorLilova V.
dc.contributor.authorNazarova D.
dc.contributor.authorNedelchev L.
dc.date.accessioned2024-11-13T14:47:19Z
dc.date.accessioned2024-11-14T07:26:01Z
dc.date.available2024-11-13T14:47:19Z
dc.date.available2024-11-14T07:26:01Z
dc.date.issued2024-09-01
dc.description.abstractThe article describes the preparation of new thin film composite materials based on the azopolymer (poly[1-[4-(3-carboxy-4-hydroxyphenylazo)benzenesulfonamido]-1,2-ethanediyl, sodium salt]) doped with three different concentration of InP/ZnS quantum dots with size of 7.5 nm. Clusters of aggregated InP/ZnS were microscopically observed in the fabricated composite samples. Birefringence (Δn) was induced in the films at two different wavelengths of the pump laser (355 nm and 444 nm) and the obtained higher values of Δnmax for the samples doped with quantum dots up to 2 wt% in comparison to the non-doped film and the sample with the highest nanocrystals concentration are discussed, based on the measured fluorescence spectra, in terms of possible local energy transfer between the azobenzene chromophores and the InP/ZnS quantum dots.
dc.identifier.doi10.1088/1402-4896/ad6d09
dc.identifier.issn1402-4896
dc.identifier.issn0031-8949
dc.identifier.scopusSCOPUS_ID:85202437866en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1506
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85202437866&origin=inward
dc.titleEffect of InP/ZnS quantum dots aggregation on the kinetics of birefringence recorded in thin azopolymer composite films
dc.typeArticle
oaire.citation.issue9
oaire.citation.volume99
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