TY - JOUR
T1 - Crystal growth and visible fluorescence and energy transfer features of Dy3+/RE3+ (RE = Tb, Eu)-codoped Y3Al5O12 crystals
AU - Li, Wen
AU - Yang, Jiaxue
AU - Wang, Yan
AU - Lakshminarayana, G.
AU - Li, Jianfu
AU - Zhu, Zhaojie
AU - You, Zhenyu
AU - Tu, Chaoyang
AU - Lee, Dong Eun
AU - Yoon, Jonghun
AU - Park, Taejoon
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2022/7
Y1 - 2022/7
N2 - In this work, 4 at% Dy3+: YAG (Dy: YAG), 4 at% Dy3+/0.5 at% Tb: YAG (Dy/Tb: YAG), 4 at% Dy3+/0.5 at% Eu3+: YAG (Dy/Eu: YAG), 0.5 at% Tb: YAG (Tb: YAG), and 0.5 at% Eu3+: YAG (Eu: YAG) crystals have been synthesized by the Czochralski method. Optical absorption and luminescence spectra of Dy: YAG, Dy/Tb: YAG, and Dy/Eu: YAG crystals are contrasted and discussed. Through emission decay times of Dy3+: 4F9/2 level in related crystals and the fluorescence spectra under different excitations, the energy transfer pathways between Dy3+ and Tb3+, and Dy3+ and Eu3+ ions are explored. Additionally, Judd-Ofelt analysis is performed to estimate distinct spectroscopic factors like radiative transition rates, fluorescence branching ratios, and radiative lifetimes.
AB - In this work, 4 at% Dy3+: YAG (Dy: YAG), 4 at% Dy3+/0.5 at% Tb: YAG (Dy/Tb: YAG), 4 at% Dy3+/0.5 at% Eu3+: YAG (Dy/Eu: YAG), 0.5 at% Tb: YAG (Tb: YAG), and 0.5 at% Eu3+: YAG (Eu: YAG) crystals have been synthesized by the Czochralski method. Optical absorption and luminescence spectra of Dy: YAG, Dy/Tb: YAG, and Dy/Eu: YAG crystals are contrasted and discussed. Through emission decay times of Dy3+: 4F9/2 level in related crystals and the fluorescence spectra under different excitations, the energy transfer pathways between Dy3+ and Tb3+, and Dy3+ and Eu3+ ions are explored. Additionally, Judd-Ofelt analysis is performed to estimate distinct spectroscopic factors like radiative transition rates, fluorescence branching ratios, and radiative lifetimes.
KW - Dy/Eu
KW - Dy/Tb
KW - Energy transfer
KW - Fluorescence features
KW - YAG
KW - Yellow laser crystal
UR - http://www.scopus.com/inward/record.url?scp=85127147512&partnerID=8YFLogxK
U2 - 10.1016/j.jlumin.2022.118864
DO - 10.1016/j.jlumin.2022.118864
M3 - Article
AN - SCOPUS:85127147512
SN - 0022-2313
VL - 247
JO - Journal of Luminescence
JF - Journal of Luminescence
M1 - 118864
ER -