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Crystal growth and visible fluorescence and energy transfer features of Dy3+/RE3+ (RE = Tb, Eu)-codoped Y3Al5O12 crystals
- Authors
- Li, Wen; Yang, Jiaxue; Wang, Yan; Lakshminarayana, G.; Li, Jianfu; Zhu, Zhaojie; You, Zhenyu; Tu, Chaoyang; Lee, Dong-Eun; Yoon, Jonghun; Park, Taejoon
- Issue Date
- Jul-2022
- Publisher
- ELSEVIER
- Keywords
- YAG; < p> Dy3+/Tb3+< /p> ; < p> Dy3+/Eu3+< /p> ; Fluorescence features; Energy transfer; Yellow laser crystal
- Citation
- JOURNAL OF LUMINESCENCE, v.247
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF LUMINESCENCE
- Volume
- 247
- ISSN
- 0022-2313
- 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 syn-thesized 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+: F-4(9/2) 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.
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Related Researcher
- Park, Tae joon
- ERICA 공학대학 (DEPARTMENT OF ROBOT ENGINEERING)