Optical Materials, volume 128, pages 112330
Selective laser spectroscopy of a highly dispersed Bi4Ge3O12 scintillator doped with Pr3+ ions
Alimov Olimkhon
1
,
Doroshenko Maxim
1
,
Egorysheva Anna
2
,
Gajtko Olga M.
2
,
Krupkina A. S.
1
,
Shodiev Hasan
3
,
3
Wilfred Laurier University, 70 University Ave., Waterloo, ON, Canada
|
Publication type: Journal Article
Publication date: 2022-06-01
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
The optical properties of a highly dispersed bismuth orthogermanate powder Bi 4 Ge 3 O 12 : Pr 3+ (HDP_BGO: Pr 3+ ) were studied at Т = 300 K. The fluorescence of undoped HDP_BGO under ultraviolet (UV) excitation (λ exc = 266 nm) was shown to result from Frenkel excitons (GeO 4 4− , BiO 6 9− ). The HDP_BGO fluorescence decay kinetics under UV excitation had a complex decay form similar to that of BGO single crystal and was a sum of four exponentials with lifetimes τ 1, 2, 3, 4 – 0.16/0.30/0.70/2.7 μs respectively. Two types of Pr 3+ ions optical centers with lifetimes of ∼5.0 and 85 μs have been determined in a HDP_BGO: Pr 3+ . The resonance energy transfer of the electronic excitation from the HDP_BGO to Pr 3+ ions was identified. The effect of Pr 3+ ions on the HDP_BGO fluorescence lifetime reduction from 160 to 35 ns was established. • A new highly dispersed Bi 4 Ge 3 O 12 powder, promising for LED phosphors and scintillators, has been proposed. • It is shown that the optical properties of a BGO powder are similar to those of a BGO crystal. • The effect of Pr 3+ ions on the BGO fluorescence properties was demonstrated.
Citations by journals
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1
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Journal of Physical Chemistry C
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Journal of Physical Chemistry C
1 publication, 50%
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Advanced Optical Materials
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Advanced Optical Materials
1 publication, 50%
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1
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Citations by publishers
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1
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American Chemical Society (ACS)
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American Chemical Society (ACS)
1 publication, 50%
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Wiley
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Wiley
1 publication, 50%
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1
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Alimov O. et al. Selective laser spectroscopy of a highly dispersed Bi4Ge3O12 scintillator doped with Pr3+ ions // Optical Materials. 2022. Vol. 128. p. 112330.
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Alimov O., Doroshenko M., Egorysheva A., Gajtko O. M., Krupkina A. S., Shodiev H., Veselova V. O. Selective laser spectroscopy of a highly dispersed Bi4Ge3O12 scintillator doped with Pr3+ ions // Optical Materials. 2022. Vol. 128. p. 112330.
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TY - JOUR
DO - 10.1016/j.optmat.2022.112330
UR - https://doi.org/10.1016%2Fj.optmat.2022.112330
TI - Selective laser spectroscopy of a highly dispersed Bi4Ge3O12 scintillator doped with Pr3+ ions
T2 - Optical Materials
AU - Alimov, Olimkhon
AU - Doroshenko, Maxim
AU - Egorysheva, Anna
AU - Gajtko, Olga M.
AU - Krupkina, A. S.
AU - Shodiev, Hasan
AU - Veselova, Varvara O
PY - 2022
DA - 2022/06/01 00:00:00
PB - Elsevier
SP - 112330
VL - 128
SN - 0925-3467
ER -
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@article{2022_Alimov,
author = {Olimkhon Alimov and Maxim Doroshenko and Anna Egorysheva and Olga M. Gajtko and A. S. Krupkina and Hasan Shodiev and Varvara O Veselova},
title = {Selective laser spectroscopy of a highly dispersed Bi4Ge3O12 scintillator doped with Pr3+ ions},
journal = {Optical Materials},
year = {2022},
volume = {128},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016%2Fj.optmat.2022.112330},
pages = {112330},
doi = {10.1016/j.optmat.2022.112330}
}