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Effects of ultraviolet light on optical properties of colloidal CdS nanoparticles embedded in a polymer PVA matrix
V. Lashkaryov Institute of Semiconductor Physics of National Academy of Sciences of Ukraine, Kiev.
V. Lashkaryov Institute of Semiconductor Physics of National Academy of Sciences of Ukraine, Kiev.
Bukovinian State Medical University, Chernivtsi, Ukraine.
Linköping University, Department of Physics, Chemistry and Biology, Functional Electronic Materials. Linköping University, The Institute of Technology.
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2012 (English)In: Advanced Science, Engineering and Medicine, ISSN 2164-6627, Vol. 4, no 5, 394-400 p.Article in journal (Refereed) Published
Abstract [en]

CdS nanoparticles have been synthesized in aqueous solution using polyvinyl alcohol (PVA) as a capping reagent. The effects of exposure by ultraviolet (UV) light on optical properties of nanocomposites consisting of colloidal CdS nanoparticles and a polymer PVA matrix were studied by employing photoluminescence (PL) spectroscopy. It is shown that UV-induced changes of the photoluminescence intensity in PVA are caused by creation and healing of non-radiative recombination centers. It is also concluded that in the nanocomposites, the UV-induced changes of the PL intensity are predominantly governed by processes at the NP/PVA interface.

Place, publisher, year, edition, pages
American Scientific Publishers, 2012. Vol. 4, no 5, 394-400 p.
Keyword [en]
CdS Nanoparticles, PVA Matrix, Nanocomposites, Photoluminescence
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:liu:diva-81330DOI: 10.1166/asem.2012.1174OAI: oai:DiVA.org:liu-81330DiVA: diva2:551690
Available from: 2012-09-11 Created: 2012-09-11 Last updated: 2017-03-27

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Beyer, JanChen, WeiminBuyanova, Irina

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