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Study of sol-gel Cu-doped Al2O3 thin films: Structural and optical properties
Ivanova, T.; Harizanova, A.; Koutzarova, T. et al.
2014In Journal of Physics. Conference Series, 514, p. 012008
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Keywords :
Aluminum; Amorphous films; Education; Film preparation; Quartz; Sol-gel process; Sol-gels; Ultraviolet visible spectroscopy; Vacuum; Amorphous and crystalline phasis; Annealing procedures; High-temperature treatment; Optical characterization; Quartz substrate; Sol-gel deposition; Structural and optical properties; UV-vis spectroscopy; Copper
Abstract :
[en] We present a study of of copper-doped Al2O3 films prepared by sol-gel deposition. The films were spin-coated on Si and quartz substrates and a high-temperature treatment was conducted in the range 500-800 °C in oxygen or nitrogen. The impact was followed of the annealing procedures on the AlxCu1-xO3 films's properties. XRD was used to determine the films' structure; it revealed a mixture of amorphous and crystalline phases. Optical characterization was performed by UV-VIS spectroscopy. The sol-gel films prepared are very transparent. The band gaps of the Al-Cu-O films were estimated from the optical data, with the values ranging from 3.4 to 4.8 eV depending on the Cu content, the annealing and the gas ambients.
Disciplines :
Chemistry
Author, co-author :
Ivanova, T.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria
Harizanova, A.;  Central Laboratory of Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria
Koutzarova, T.;  Acad. E. Djakov Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria
Vertruyen, Bénédicte  ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale
Language :
English
Title :
Study of sol-gel Cu-doped Al2O3 thin films: Structural and optical properties
Publication date :
2014
Event name :
18th International Summer School on Vacuum, Electron and Ion Technologies, VEIT 2013
Event date :
7 October 2013 through 11 October 2013
Audience :
International
Journal title :
Journal of Physics. Conference Series
ISSN :
1742-6588
eISSN :
1742-6596
Publisher :
Institute of Physics Publishing
Volume :
514
Pages :
012008
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 February 2015

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