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This article is cited in 2 scientific papers (total in 2 papers)
Optical properties
Influence of indium on the spectral and structural characteristics of Lu$_{0.98-x}$In$_{x}$Eu$_{0.02}$BO$_{3}$
S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova, I. I. Zver'kova Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
Abstract:
The structure, IR absorption spectra, and luminescence spectra of orthoborates Lu$_{0.98-x}$In$_{x}$Eu$_{0.02}$BO$_{3}$ at
0$\le x\le$ 0.1 has been studied. It is shown that a Lu$_{1-x}$In$_{x}$BO$_{3}$ solid solution consisting of lutetium borate LuBO$_3$, which has two stable structural modifications (calcite and vaterite), and indium orthoborate InBO$_3$, which has only one structural modification (calcite), is crystallized almost completely into the calcite st-ructure at $x$ = 0.1. It is shown for the first time that structural transformations in orthoborates Lu$_{0.98-x}$In$_{x}$Eu$_{0.02}$BO$_{3}$ with an increase in the In$^{3+}$ ion concentration begin in the surface layer of microcrystals of these compounds. The amount of the calcite phase successively increases with an increase in $x$ in the sample bulk as well; for the Lu$_{0.88}$In$_{0.1}$Eu$_{0.02}$BO$_{3}$ composition, 98% of the sample volume is comprised of the calcite structure.
Keywords:
LED phosphors, rare-earth element orthoborates, X-ray diffraction analysis, IR spectroscopy, luminescence spectra.
Received: 30.07.2020 Revised: 30.07.2020 Accepted: 30.07.2020
Citation:
S. Z. Shmurak, V. V. Kedrov, A. P. Kiselev, T. N. Fursova, I. I. Zver'kova, “Influence of indium on the spectral and structural characteristics of Lu$_{0.98-x}$In$_{x}$Eu$_{0.02}$BO$_{3}$”, Fizika Tverdogo Tela, 62:12 (2020), 2110–2119; Phys. Solid State, 62:12 (2020), 2374–2383
Linking options:
https://www.mathnet.ru/eng/ftt8227 https://www.mathnet.ru/eng/ftt/v62/i12/p2110
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