Crystal growth and visible fluorescence and energy transfer features of Dy3+/RE3+ (RE = Tb, Eu)-codoped Y3Al5O12 crystals
- Title
- Crystal growth and visible fluorescence and energy transfer features of Dy3+/RE3+ (RE = Tb, Eu)-codoped Y3Al5O12 crystals
- Author
- 윤종헌
- Keywords
- YAG; Dy3+/Tb3+; Dy3+/Eu3+; Fluorescence features; Energy transfer; Yellow laser crystal
- Issue Date
- 2022-07
- Publisher
- Elsevier B.V.
- Citation
- Journal of Luminescence, v. 247, article no. 118864, Page. 1-7
- Abstract
- 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. © 2022 Elsevier B.V.
- URI
- https://www.sciencedirect.com/science/article/pii/S0022231322001399?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/178767
- ISSN
- 0022-2313;1872-7883
- DOI
- 10.1016/j.jlumin.2022.118864
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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