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Influence of preparation conditions on the microstructure and optical properties of LiNbO.sub.3./sub. thin films
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SYSNO ASEP 0451696 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Influence of preparation conditions on the microstructure and optical properties of LiNbO3 thin films Author(s) Mikolášková, D. (CZ)
Rubešová, K. (CZ)
Hlásek, T. (CZ)
Jakeš, V. (CZ)
Oswald, Jiří (FZU-D) RID, ORCID
Remsa, Jan (FZU-D) RID, ORCIDSource Title Ceramics - Silikáty. - : University of Chemistry and Technology Prague - ISSN 0862-5468
Roč. 59, č. 2 (2015), s. 164-168Number of pages 5 s. Language eng - English Country CZ - Czech Republic Keywords lithium niobate ; thin film ; sol-gel ; rapid annealing Subject RIV CA - Inorganic Chemistry Institutional support FZU-D - RVO:68378271 UT WOS 000362625900012 EID SCOPUS 84942908397 Annotation Thin films of Er3+/Yb3+: LiNbO3 were deposited on sapphire (0001) substrates using a spin-coating process. A deposited solution was prepared by a non-aqueous sol-gel method using 2-methoxyethanol, metallic lithium, niobium(V) ethoxide and erbium and ytterbium acetates. Two starting compositions of LiNbO3 solution (1:1 or congruent) were tested in order to minimize the present of secondary (Er/Yb)NbO4 phases. The effect of different temperature (800°C or 1000°C) and different used atmosphere (air or oxygen) during the films crystallization was also investigated. Rapid annealing (at 1150°C with the heating rate 55°C·s-1) was also tested and its influence on secondary phases crystallinity and luminescence of Er3+/Yb3+: LiNbO3 was established. The thin films were characterized by X-ray diffraction analysis, scanning electron microscopy and photoluminescence spectroscopy. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
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