Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Shaping the photoluminescence spectrum of ZrO2:Eu3+ phosphor in dependence on the Eu concentration. / Nashivochnikov, Aleksandr A.; Kostyukov, Anton I.; Zhuzhgov, Aleksey V. и др.
в: Optical Materials, Том 121, 111620, 11.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Shaping the photoluminescence spectrum of ZrO2:Eu3+ phosphor in dependence on the Eu concentration
AU - Nashivochnikov, Aleksandr A.
AU - Kostyukov, Anton I.
AU - Zhuzhgov, Aleksey V.
AU - Rakhmanova, Marianna I.
AU - Cherepanova, Svetlana V.
AU - Snytnikov, Valeriy N.
N1 - Funding Information: This work was supported by the Russian Foundation for Basic Research within project No. 19-32-60027 and was partially supported by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for Boreskov Institute of Catalysis (project АААА-А21-121011390009-1 ). Publisher Copyright: © 2021 Elsevier B.V.
PY - 2021/11
Y1 - 2021/11
N2 - A series of Eu doped ZrO2 micropowders with different concentration of Eu (0.04–6.85 wt%) was obtained by incipient wetness impregnation followed by annealing at 1200 °C. X-ray diffraction analysis revealed that the phase composition of samples with the minimum Eu concentrations in the series is represented predominantly by the monoclinic phase. An increase in the Eu content leads to proportional stabilization of the tetragonal phase, and at concentrations above 2.00 wt% the cubic ZrO2 phase is also stabilized. It was shown that red luminescence of the samples is responsible for the radiation transitions 5D0 → 7FJ (J = 0–4) in Eu3+ ions. It was shown that shaping the photoluminescence spectrum of monoclinic ZrO2:Eu3+ phosphor depending on Eu concentration is related to the stabilization of ZrO2 tetragonal and cubic structure by Eu3+. The local symmetry of Eu3+ in each of the detected phases was identified. The lifetime of Eu3+ in the monoclinic phase of ZrO2 does not depend on the dopant concentration and is in the range of 0.73–0.81 ms, whereas in the tetragonal phase it first increases from 1.7 to 1.85 ms and then reaches a maximum at a concentration of 2.00 wt%. The absolute quantum yield increases from 1.6 to 4.8% over the entire range of Eu concentration.
AB - A series of Eu doped ZrO2 micropowders with different concentration of Eu (0.04–6.85 wt%) was obtained by incipient wetness impregnation followed by annealing at 1200 °C. X-ray diffraction analysis revealed that the phase composition of samples with the minimum Eu concentrations in the series is represented predominantly by the monoclinic phase. An increase in the Eu content leads to proportional stabilization of the tetragonal phase, and at concentrations above 2.00 wt% the cubic ZrO2 phase is also stabilized. It was shown that red luminescence of the samples is responsible for the radiation transitions 5D0 → 7FJ (J = 0–4) in Eu3+ ions. It was shown that shaping the photoluminescence spectrum of monoclinic ZrO2:Eu3+ phosphor depending on Eu concentration is related to the stabilization of ZrO2 tetragonal and cubic structure by Eu3+. The local symmetry of Eu3+ in each of the detected phases was identified. The lifetime of Eu3+ in the monoclinic phase of ZrO2 does not depend on the dopant concentration and is in the range of 0.73–0.81 ms, whereas in the tetragonal phase it first increases from 1.7 to 1.85 ms and then reaches a maximum at a concentration of 2.00 wt%. The absolute quantum yield increases from 1.6 to 4.8% over the entire range of Eu concentration.
KW - Europium
KW - Photoluminescence
KW - Quantum yield
KW - Zirconium dioxide
UR - http://www.scopus.com/inward/record.url?scp=85115886829&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2021.111620
DO - 10.1016/j.optmat.2021.111620
M3 - Article
AN - SCOPUS:85115886829
VL - 121
JO - Optical Materials
JF - Optical Materials
SN - 0925-3467
M1 - 111620
ER -
ID: 34338980