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Doppler broadening of the annihilation line study of organic-inorganic hybrid ureasil-based composites
Authors
Boev V.
Kavetskyy T.
+5 more
Kukhta A.
Petkov P.
Petkova T.
Stepanov A.
Šauša O.
Publication date
1 January 2015
Publisher
Abstract
© Springer Science+Business Media Dordrecht 2015. The organic-inorganic hybrid ureasil-based composites, containing polyether chains covalently linked to a silica framework through urea bridges, referred as ureasilicates or ureasils, and semiconducting As2S3clusters, are investigated using Doppler broadening of annihilation line technique. It is established that the Doppler S and W parameters show significant structural difference between the pure ureasil and the As2S3-ureasil composites, the effect is more essential as the loading fraction of As2S3increases. The new Doppler broadening results obtained in this work are found to be in consistent with the earlier reported results of positron annihilation lifetime measurements of the same materials
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Last time updated on 07/05/2019