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Growth and Spectroscopic Characteristics of Er ‐Doped CeF 3 –CaF 2 Disordered Crystals
Author(s) -
Wang Qingguo,
Su Liangbi,
Zheng Lihe,
Li Hongjun,
Tang Huili,
Guo Xin,
Jiang Dapeng,
Xu Jun
Publication year - 2012
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2011.04850.x
Subject(s) - doping , photon upconversion , analytical chemistry (journal) , luminescence , ion , materials science , absorption spectroscopy , crystal (programming language) , photoluminescence , energy transfer , absorption (acoustics) , spectral line , emission spectrum , chemistry , optoelectronics , optics , molecular physics , physics , organic chemistry , astronomy , computer science , composite material , programming language , chromatography
Er ‐Doped and Yb,Er ‐Doped CeF 3 –CaF 2 disordered crystals were grown by temperature gradient technique ( TGT ) method. The UV – VIS – NIR absorption spectra, near‐infrared emission spectra, and the lifetime of 4 I 13/2 level were measured. The infrared to visible upconversion emission of Er 3+ was investigated in the grown crystals. The concentration distribution of doped ions was analyzed using ICP measurements. The efficiency of energy transfer from Yb 3+ ( 2 F 5/2 ) to Er 3+ ( 4 I 11/2 ) was about 88%. The experimental luminescence lifetime of the ~1.5 μm emission for CeF 3 –CaF 2 : Yb,Er crystal was 3.84 ms, and its quantum efficiency was 79%.