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This article is cited in 7 scientific papers (total in 7 papers)
XXV International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 9-12, 2021
Radiative properties of up-conversion coatings formed on the basis of erbium-doped barium titanate xerogels
N. V. Gaponenkoa, Yu. D. Kornilavaa, E. I. Lashkovskayaa, V. D. Zhivulkob, A. V. Mudryib, Yu. V. Radyushb, B. A. Andreevc, M. V. Stepikhovac, A. N. Yablonskiic, S. A. Gusevc, R. Subasrid, D. S. Reddyd a Belarussian State University of Computer Science and Radioelectronic Engineering
b Scientific-Practical Materials Research Centre of NAS of Belarus
c Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhnii Novgorod
d Centre for Sol-Gel Coatings, International Advanced Research Centre for Powder Metallurgy and New Materials,
500005 Hyderabad, India
Abstract:
The Stokes and anti-Stokes luminescence of erbium in sol–gel-derived barium-titanate xerogels (BaTiO$_3$ : Er) and BaTiO$_{3}$/SiO$_{2}$ multilayer structures based on these xerogels formed on silicon substrates is studied. It is shown that the up-conversion of erbium in barium-titanate xerogels obtained from erbium nitrate or acetate is observed at an erbium concentration of $>3$ at.%. The up-conversion of erbium is observed at an excitation wavelength of 980 nm and characterized by an intense band in the 520–560 nm range, corresponding to the $^{2}H_{11/2}\to{}^4I_{15/2}$ and $^{4}S_{3/2}\to{}^4I_{15/2}$ radiative transitions of the erbium ion, as well as the bands in the regions of 650 and 850 nm associated with the $^{4}F_{9/2}\to{}^4I_{15/2}$ и $^{4}I_{9/2}\to{}^4I_{15/2}$ transitions, respectively. Based on the obtained BaTiO$_{3}$ xerogels, multilayer BaTiO$_{3}$ : Er/SiO$_{2}$/Si structures are formed on silicon substrates, providing a significant, compared to single-layer BaTiO$_3$ : Er/Si structures, increase in the intensity of erbium luminescence at the wavelength of the main radiative transition (1540 nm). The prospects of developing up-conversion coatings based on erbium-doped barium titanate for practical applications are discussed.
Keywords:
barium titanate, erbium, upconversion, luminescence, sol-gel method, multilayer structures.
Received: 12.04.2021 Revised: 19.04.2021 Accepted: 19.04.2021
Citation:
N. V. Gaponenko, Yu. D. Kornilava, E. I. Lashkovskaya, V. D. Zhivulko, A. V. Mudryi, Yu. V. Radyush, B. A. Andreev, M. V. Stepikhova, A. N. Yablonskii, S. A. Gusev, R. Subasri, D. S. Reddy, “Radiative properties of up-conversion coatings formed on the basis of erbium-doped barium titanate xerogels”, Fizika i Tekhnika Poluprovodnikov, 55:9 (2021), 713–718; Semiconductors, 55:9 (2021), 735–740
Linking options:
https://www.mathnet.ru/eng/phts4970 https://www.mathnet.ru/eng/phts/v55/i9/p713
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