Examining the contribution of Cu and Sr codoping on luminescence properties of borate crystals

Examining the contribution of Cu and Sr codoping on luminescence properties of borate crystals Full article

Journal

Optical Materials
ISSN: 1873-1252 , E-ISSN: 0925-3467

Output data

Year: 2025, Volume: 158, Article number : 116465, Pages count : DOI: 10.1016/j.optmat.2024.116465

Authors

Bekker Tatyana B. ^1,2,3 , Davydov Alexey V. ^1,2 , Ryadun Alexey A. ^2,4 , Yelisseyev Alexander P. ^1,2 , Solntsev Vladimir P. ¹ , Fedorenko Anastasiya D. ^4,5

Affiliations

1	Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, 630090, Novosibirsk, Russia
2	Novosibirsk State University, 630090, Novosibirsk, Russia
3	Novosibirsk State University of Architecture, Design and Arts (NSUADA), 630099, Novosibirsk, Russia
4	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, 630090, Novosibirsk, Russia
5	Novosibirsk State Technical University, 630073, Novosibirsk, Russia

Four crystals of Ba12(BO3)6[BO3][LiF4] (LBBF) with different ratios of co-dopants, Cu and Sr, were grown from high-temperature solutions. The LBBF structure is built from a porous [Ba12(BO3)6] 6+ framework with channels along the optical axis filled with anionic groups. It was found that LBBF:Cu,Sr accommodates copper ions in the channels of the structure in both mono- and divalent states with the concentration of Cu + exceeding that of Cu2+, and Sr2+ replaces Ba2+ in the framework. At a constant concentration of copper and an increase in the concentration of strontium in the initial solution, the concentration of Cu+ in LBBF does not change mono tonically but has a maximum. The broad photoluminescence band at about 410–440 nm is associated with the emission of Cu+ ions, while the bands at about 310–317 nm and 600 nm are related to Cu2+. All emissions demonstrate considerable temperature quenching in the range from 77 to 300 K. The LBBF:Cu crystals exhibit intense thermoluminescence (TL) in the range from 100 to 250 K after low-temperature X-ray irradiation, and peaks at about 315 and 380 K after room-temperature irradiation. With combined doping with strontium, the TL peaks shift to the region of higher temperatures, 365 and 410 K, without weakening the high-temperature component, which intensity linearly depends on radiation dose

Bekker T.B. , Davydov A.V. , Ryadun A.A. , Yelisseyev A.P. , Solntsev V.P. , Fedorenko A.D.
Examining the contribution of Cu and Sr codoping on luminescence properties of borate crystals
Optical Materials. 2025. V.158. 116465 . DOI: 10.1016/j.optmat.2024.116465 WOS Scopus OpenAlex

Submitted:	May 31, 2024
Accepted:	Nov 19, 2024
Published online:	Nov 20, 2024
Published print:	Jan 1, 2025

Web of science:	WOS:001367119200001
Scopus:	2-s2.0-85209949313
OpenAlex:	W4404565437

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