Optical Materials, volume 141, pages 113966
Gadolinium oxide single crystals: Optical properties and radiation resistance
Pustovarov Vladimir
1
,
Nikolaev Ruslan E
2
,
Trifonov V.A.
2
,
Dhoble Sanjay J.
3
,
Tavrunov Dmitry
1
,
Publication type: Journal Article
Publication date: 2023-07-01
Electronic, Optical and Magnetic Materials
Organic Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Spectroscopy
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Abstract
Large-size high optical quality Gd2O3 single crystals were grown from solution at T = 1145 °C by Czochralski method. XRD analysis showed that the crystal structure is characterized by a single cubic phase (С-phase). Absorption spectra and luminescence properties of Gd2O3 doped with impurity Tb3+ ion were studied. The absorption spectrum is determined by electronic transitions in Gd3+ ion (spectral region of 245–315 nm) and interband electron transitions below 240 nm. Intraconfigurational radiative f-f transitions from 5D4 level in Tb3+ ion are clearly manifested upon both UV- and X-ray excitation. At the same time, 6PJ → 8S7/2 radiative transitions in Gd3+ ions are completely absent. This fact indicates high efficiency of nonradiative energy transfer from Gd3+ to Tb3+ ions. Thermo-luminescent spectroscopy shows the absence of charge carrier trapping centers, which proves the perfection of its crystal structure. The crystal under study shows high radiation resistance to high-energy (E = 10 MeV, D = 105 kGy) electron beam. However, the effects of irradiation appear only in the photoluminescence excitation spectra and thermally stimulated luminescence.
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Optical Materials
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Optical Materials
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Semiconductor Physics, Quantum Electronics and Optoelectronics
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National Academy of Sciences of Ukraine - Institute of Semiconductor Physics
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National Academy of Sciences of Ukraine - Institute of Semiconductor Physics, 1, 50%
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Pustovarov V. et al. Gadolinium oxide single crystals: Optical properties and radiation resistance // Optical Materials. 2023. Vol. 141. p. 113966.
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Pustovarov V., Nikolaev R. E., Trifonov V., Tarasenko M. S., Dhoble S. J., Tavrunov D., Naumov N. G. Gadolinium oxide single crystals: Optical properties and radiation resistance // Optical Materials. 2023. Vol. 141. p. 113966.
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TY - JOUR
DO - 10.1016/j.optmat.2023.113966
UR - https://doi.org/10.1016%2Fj.optmat.2023.113966
TI - Gadolinium oxide single crystals: Optical properties and radiation resistance
T2 - Optical Materials
AU - Pustovarov, Vladimir
AU - Nikolaev, Ruslan E
AU - Trifonov, V.A.
AU - Tarasenko, Maria S.
AU - Dhoble, Sanjay J.
AU - Tavrunov, Dmitry
AU - Naumov, N. G.
PY - 2023
DA - 2023/07/01 00:00:00
PB - Elsevier
SP - 113966
VL - 141
SN - 0925-3467
ER -
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@article{2023_Pustovarov,
author = {Vladimir Pustovarov and Ruslan E Nikolaev and V.A. Trifonov and Maria S. Tarasenko and Sanjay J. Dhoble and Dmitry Tavrunov and N. G. Naumov},
title = {Gadolinium oxide single crystals: Optical properties and radiation resistance},
journal = {Optical Materials},
year = {2023},
volume = {141},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016%2Fj.optmat.2023.113966},
pages = {113966},
doi = {10.1016/j.optmat.2023.113966}
}