Article (Scientific journals)
Sol-gel derived ZnO:Y nanostructured films: Structural and optical study
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al.
2017In Colloids and Surfaces A: Physicochemical and Engineering Aspects, 532, p. 363-368
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Keywords :
Doping; Optical; Sol-gel; Thin films; ZnO
Abstract :
[en] The study is focused on the sol-gel derived ZnO:Y nanostructured films with different yttrium concentrations. The sol-gel Y doped ZnO films have been successfully deposited on Si and quartz substrates by spin coating method. The effect of thermal treatment is researched depending on their structural and optical properties. The annealing temperatures are changed in the range of 300–800 °C. XRD patterns reveal that the crystallization of Y doped ZnO films is significantly deteriorated and the broader and less intense XRD lines are observed compared to single ZnO. The XRD analysis shows that increasing the yttrium contents and the annealing temperatures lead to the formation of cubic yttrium oxide. This conclusion has been confirmed by FTIR analysis. Optical transmittance in the visible spectral range diminishes with yttrium doping especially significant for ZnO:Y films with highest Y content. The determined optical band gaps of ZnO:Y films are wider compared to single ZnO. © 2017 Elsevier B.V.
Disciplines :
Chemistry
Physics
Author, co-author :
Ivanova, T.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Blvd. Tzarigradsko Chaussee 72, Sofia, Bulgaria
Harizanova, A.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, Blvd. Tzarigradsko Chaussee 72, Sofia, Bulgaria
Koutzarova, T.;  Institute of Electronics, Bulgarian Academy of Sciences, Blvd. Tzarigradsko Chaussee 72, Sofia, Bulgaria
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Language :
English
Title :
Sol-gel derived ZnO:Y nanostructured films: Structural and optical study
Publication date :
2017
Journal title :
Colloids and Surfaces A: Physicochemical and Engineering Aspects
ISSN :
0927-7757
eISSN :
1873-4359
Publisher :
Elsevier Science
Volume :
532
Pages :
363-368
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 December 2017

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