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Preparation of potassium tantalate niobate thin films by chemical solution deposition and their characterization
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SYSNO ASEP 0023758 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Preparation of potassium tantalate niobate thin films by chemical solution deposition and their characterization Title Příprava KNbTaO3 tenkého filmu metodou depozice z kapalné fáze a jeho charakterizace Author(s) Buršík, Josef (UACH-T) RID, ORCID, SAI
Železný, Vladimír (FZU-D) RID, ORCID
Vaněk, Přemysl (FZU-D) RID, ORCIDSource Title Journal of the European Ceramic Society. - : Elsevier - ISSN 0955-2219
Roč. 25, č. 12 (2005), s. 2151-2154Number of pages 4 s. Language eng - English Country GB - United Kingdom Keywords films ; tantalates ; chemical solution deposition Subject RIV CA - Inorganic Chemistry R&D Projects GA202/02/0238 GA ČR - Czech Science Foundation (CSF) LN00A028 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OC 528.001 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40320502 - UACH-T (2005-2011) Annotation Potassium tantalate niobate (KTaxNb1-xO3, (KTN), where x=0, 0.21, 0.36, 0.53, 0.74, 0.82, 0.86, and 1) thin films of perovskite structure were prepared by chemical solution deposition (CSD) on Si and SiO2 glass substrates. A homogeneous and stable precursor solution was obtained by dissolving potassium, niobium and tantalum isobutoxides in absolute isobutanol and an addition of diethanolamine as a modifier. The film quality was determined by annealing temperature and heating regime, Al2O3 "chemical" buffer layer and KNbO3 seeding layer. Optimum conditions for film preparation were found. It was approved by X-ray diffraction (XRD) that the films have the wanted pseudocubic perovskite structure. Infrared transmittance was measured for broad range of Ta/Nb ratios. The spectra show continuous transformation from KTaO3 to KNbO3 and indicate that the optical axis lies in the plane of the film. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2006
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