Reference : Preparation and characterization of ZnO-TiO(2) films obtained by sol-gel method
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/97974
Preparation and characterization of ZnO-TiO(2) films obtained by sol-gel method
English
Ivanova, T. [Bulgarian Academy of Science - BAS > Central Laboratory of Solar Energy and New Energy Sources > > >]
Harizanova, A. [Bulgarian Academy of Science - BAS > Central Laboratory of Solar Energy and New Energy Sources > > >]
Koutzarova, T. [Bulgarian Academy of Science - BAS > Institute of Electronics > > >]
Vertruyen, Bénédicte mailto [Université de Liège - ULg > Département de chimie (sciences) > Chimie inorganique structurale > >]
2011
Journal Of Non-Crystalline Solids
Elsevier Science Bv
357
15
2840-2845
Yes (verified by ORBi)
International
0022-3093
Amsterdam
[en] Metal oxides films ; Sol-gel technology ; X-Ray diffraction ; Optical properties
[en] The sol-gel route has been applied to obtain ZnO-TiO(2) thin films. For comparison, pure TiO(2) and ZnO films are also prepared from the corresponding solutions. The films are deposited by a spin-coated method on silicon and glass substrates. Their structural and vibrational properties have been studied as a function of the annealing temperatures (400-750 degrees C). Pure ZnO films crystallize in a wurtzite modification at a relatively low temperature of 400 degrees C, whereas the mixed oxide films show predominantly amorphous structure at this temperature. XRD analysis shows that by increasing the annealing temperatures, the sol-gel Zn/Ti oxide films reveal a certain degree of crystallization and their structures are found to be mixtures of wurtzite ZnO, Zn(2)TiO(4), anatase TiO(2) and amorphous fraction. The XRD analysis presumes that Zn(2)TiO(4) becomes a favored phase at the highest annealing temperature of 750 degrees C. The obtained thin films are uniform with no visual defects. The optical properties of ZnO-TiO(2) films have been compared with those of single component films (ZnO and TiO(2)). The mixed oxide films present a high transparency with a slight decrease by increasing the annealing temperature. (C) 2011 Elsevier B.V. All rights reserved.
Researchers ; Professionals
http://hdl.handle.net/2268/97974
10.1016/j.jnoncrysol.2011.03.019
The following article appeared in Journal of Non-Crystalline Solids and may be found on the editor website http://www.sciencedirect.com/

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