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Lee, Moo Hyun
지하실험 연구단
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Optical properties of the Czochralski grown Cs2MoO4 crystal

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Title
Optical properties of the Czochralski grown Cs2MoO4 crystal
Author(s)
Arshad Khan; Sajid Khan; H.J. Kim; Lee, Moo Hyun; Kim, Yeongduk
Publication Date
2021-09
Journal
Optik, v.242
Publisher
Elsevier BV
Abstract
© 2021 Elsevier GmbHSingle crystal growth of novel dicesium molybdate (Cs2MoO4) crystal by Czochralski technique was carried out. The single crystal phase was confirmed by powders X-ray diffraction analysis. The optical band gap of 4.22 eV was estimated from the absorbance spectra, measured at room temperature. The luminescence properties were measured under the excitation of 4.42 eV UV light from an LED source in the temperature range of 10–300 K. The photoluminescence light yield increases upon cooling down the grown crystal to 10 K. The luminescence decay time was analyzed with the sum of three exponential decay-time functions in the entire temperature range. The comparison of luminescence light yield with Li2MoO4 (one of the promising scintillating bolometers for the neutrinoless double-beta decay search) at 10 K shows a similar light output. These preliminary investigations show that the grown crystal can be a good candidate crystal for the cryogenic dark matter and neutrinoless double-beta decay search.
URI
https://pr.ibs.re.kr/handle/8788114/9848
DOI
10.1016/j.ijleo.2021.167035
ISSN
0030-4026
Appears in Collections:
Center for Underground Physics(지하실험 연구단) > 1. Journal Papers (저널논문)
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