期刊
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
卷 105, 期 8, 页码 5408-5418出版社
WILEY
DOI: 10.1111/jace.18475
关键词
Judd-Ofelt theory; sesquioxide; spectroscopic property; yellow emission
资金
- National Key Research & Development Program of China [2021YFB3501700]
- National Nature Science Funds of China [U1830125, 11535010]
- National Science Fund for Distinguished Young Scholars [61925506]
- Youth Innovation Promotion Association of CAS
- Interdisciplinary Innovation Team of CAS
- Strategic Priority Research Program of CAS [XDB16030700]
- China Postdoctoral Science Foundation [2016M601654]
A comparative study was conducted on the spectroscopic properties of LuScO3:Dy, LuYO3:Dy, and YScO3:Dy, and it was found that LuYO3:Dy has the most promising application prospects for yellow laser generation.
A comparative study of the spectroscopic properties of LuScO3:Dy, LuYO3:Dy, and YScO3:Dy was conducted to evaluate their application prospects in yellow laser generation. The absorption cross sections of Dy-doped LuScO3, LuYO3, and YScO3 at 446 nm were calculated to be 0.67, 1.51, and 1.05 x 10(-21) cm(2), respectively. The Judd-Ofelt (J-O) theory was used to determine the J-O parameters as well as the spontaneous transition probability and fluorescence branching ratios. The fluorescence spectra of LuScO3:Dy, LuYO3:Dy, and YScO3:Dy were dominated by yellow emission corresponding to the F-4(9/2) -> H-6(13/2) transition, with cross sections of 0.78, 1.10, and 0.76 x 10(-20) cm(2), respectively. The Inokuti-Hirayama model was applied to fit the non-exponential decay curve of Dy-doped sesquioxide solid solution ceramics in order to investigate the process of energy transfer. The impact of bond length and distortion degree on spectral properties and energy-transfer parameters was investigated. It was concluded that among Dy-doped sesquioxide solid solutions, LuYO3:Dy ceramics are the most promising materials for generating yellow lasers.
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