Abstract
The conditions and the mechanisms of crystallization by liquid-phase epitaxy of undoped and Ce3+-doped RAlO3 (R = Lu, Lu-Y, Y, Tb) single-crystalline films on YAlO3 single-crystalline substrates at a considerable mismatch between the lattice constants of the single-crystalline films and the substrate are analyzed. The maximum values of this mismatch at which the stable growth of the single-crystalline films is observed are determined. It is demonstrated that transition layers are present between the substrates and the grown single-crystalline films in which the difference between the lattice parameters of the single-crystalline film and the substrate is diminished. The optical and luminescence characteristics of the undoped and Ce3+-doped RAlO3 (R = Y, Y-Lu, Lu, Tb) single-crystalline films, as well as the scintillation characteristics of the (Lu-Y)AlO3: Ce single-crystalline films under excitation by alpha-particles of the 239Pu source (5.15 MeV), are investigated.
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Original Russian Text © Yu.V. Zorenko, V.I. Gorbenko, 2009, published in Fizika Tverdogo Tela, 2009, Vol. 51, No. 9, pp. 1697–1704.
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Zorenko, Y.V., Gorbenko, V.I. Growth and luminescence properties of single-crystalline films of RAlO3 (R = Lu, Lu-Y, Y, Tb) perovskite. Phys. Solid State 51, 1800–1808 (2009). https://doi.org/10.1134/S1063783409090078
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DOI: https://doi.org/10.1134/S1063783409090078