Abstract
A technological scheme was developed for the sol-gel synthesis of lithium niobate doped by zinc and boron with sol-gel method, and the optimal conditions at each stage of the process were determined. The limiting concentrations of doping impurities, at which a single-phase charge can be synthesized, were established. A ceramic composition LiNbO3: Zn: B with a bulk weight of ~2.3 g cm−3 is formed during the thermal treatment of the hydrate residue at 1100 ?? and an exposure for 3 h. Owing to the proposed method the product quality can be increased and the cost of the syntgesis of the LiNbO3: Zn: B ceramics minimized. The study of the luminescence properties of the ceramics based on the charge prepared from the charge mixture synthesized by the sol-gel method revealed that boron in the lithium niobate structure is an activator of luminescence in the high-energy visible spectral range. The obtained results can serve as a basis for the technology of production of both crystalline and ceramic new functional materials.
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Based on the materials of the XXI Mendeleev Congress on General and Applied Chemistry (September 9-13, 2019, St. Petersburg, Russia).
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 0947–0951, May, 2020.
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Masloboeva, S.M., Smirnov, M.V. & Palatnikov, M.N. Sol-gel synthesis of lithium niobate doped by zinc and boron and study of the luminescent properties of ceramics LiNbO3: Zn: B. Russ Chem Bull 69, 947–951 (2020). https://doi.org/10.1007/s11172-020-2853-0
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DOI: https://doi.org/10.1007/s11172-020-2853-0