Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Luminescence properties of rare-earth-doped fluoride borate crystals. / Bekker, Tatyana B.; Ryadun, Alexey A.; Davydov, Alexey V. и др.
в: Journal of Alloys and Compounds, Том 900, 163343, 15.04.2022.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Luminescence properties of rare-earth-doped fluoride borate crystals
AU - Bekker, Tatyana B.
AU - Ryadun, Alexey A.
AU - Davydov, Alexey V.
AU - Solntsev, Vladimir P.
AU - Grigorieva, Veronika D.
N1 - Funding Information: We thank the three anonymous Reviewers for their valuable suggestions which improved the quality of the manuscript. The authors are thankful to V. Danilovskaya (IGM SB RAS) for the wavelength-dispersive spectroscopy measurements. This work was supported by the Russian Science Foundation, grant No. 21-19-00097. Publisher Copyright: © 2021 Elsevier B.V.
PY - 2022/4/15
Y1 - 2022/4/15
N2 - Single crystals of undoped and Ce3+, Tb3+, and Eu3+/Tb3+/Ce3+ co-doped Ba12(BO3)6[BO3][LiF4] crystals were grown from high-temperature solutions. The Ba12(BO3)6[BO3][LiF4] compound crystallizes in the structural type of barium orthoborate Ba3(BO3)2 with porous Ba12(BO3)66+ cationic framework filled with disordered anionic groups. The PL and PLE spectra of undoped and rare-earth-doped crystals were studied. The photoluminescence temperature dependences in the range of 77–300 K were recorded. The shape and position of lines in the spectra are typical of cerium, terbium, and europium ions. Luminescence lifetime constants were measured in the range of 77–300 К. It was shown that at the excitation wavelength of 300 nm and 370 nm at 300 K, Ba12(BO3)6[BO3][LiF4]:Eu3+, Tb3+, Ce3+ crystals have luminescence close to daylight with CIE chromaticity coordinates and correlated color temperature of (0.335; 0.309), 5352 K and (0.295; 0.362), 7121 K, respectively. Our results indicate that rare-earth-doped Ba12(BO3)6[BO3][LiF4] crystals can be considered a candidate for the conversion of LED emission into white light.
AB - Single crystals of undoped and Ce3+, Tb3+, and Eu3+/Tb3+/Ce3+ co-doped Ba12(BO3)6[BO3][LiF4] crystals were grown from high-temperature solutions. The Ba12(BO3)6[BO3][LiF4] compound crystallizes in the structural type of barium orthoborate Ba3(BO3)2 with porous Ba12(BO3)66+ cationic framework filled with disordered anionic groups. The PL and PLE spectra of undoped and rare-earth-doped crystals were studied. The photoluminescence temperature dependences in the range of 77–300 K were recorded. The shape and position of lines in the spectra are typical of cerium, terbium, and europium ions. Luminescence lifetime constants were measured in the range of 77–300 К. It was shown that at the excitation wavelength of 300 nm and 370 nm at 300 K, Ba12(BO3)6[BO3][LiF4]:Eu3+, Tb3+, Ce3+ crystals have luminescence close to daylight with CIE chromaticity coordinates and correlated color temperature of (0.335; 0.309), 5352 K and (0.295; 0.362), 7121 K, respectively. Our results indicate that rare-earth-doped Ba12(BO3)6[BO3][LiF4] crystals can be considered a candidate for the conversion of LED emission into white light.
KW - Crystal growth
KW - Inorganic materials
KW - Luminescence
KW - Optical spectroscopy
KW - Rare earth alloys and compounds
UR - http://www.scopus.com/inward/record.url?scp=85121857193&partnerID=8YFLogxK
UR - https://www.elibrary.ru/item.asp?id=47549870
U2 - 10.1016/j.jallcom.2021.163343
DO - 10.1016/j.jallcom.2021.163343
M3 - Article
AN - SCOPUS:85121857193
VL - 900
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
M1 - 163343
ER -
ID: 35196272