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JIAZHONG ZHANG1, HAIPING XIA1,* , LI FU1, SHUO YANG1, YONGZHANG JIANG1, XUEMEI GU1, JIANLI ZHANG2
The absorption spectra and up-conversion (UC) luminescence of Er3+/Yb3+ ions co doped LiYF4 s ingle crystal s synthesized by vertical Bridgman method were investigated. Up conversion emissions at 519, 522, 529 nm, and 541, 550 nm, and 649, 655, 669 nm were observed. The yellowish green light can be achieved from 2.14 mol% Er3+ and 4.04 mol% Yb3+ co-doped LiYF4 crystal. The mechanisms of UC emissions are proposed based on the pump power dependent UC spectra. A cooperative energy transfer process from excited Yb3+ to Er3+ in the form of two photons has been presented in LiYF4 at room temperature..
Up-conversion, Crystal growth, LiYF4 single crystals, Er3+, Yb3.
JIAZHONG ZHANG, HAIPING XIA, LI FU, SHUO YANG, YONGZHANG JIANG, XUEMEI GU, JIANLI ZHANG, Up-conversion luminescence in Er 3+/Yb3+ co-doped LiYF4 single crystal s, Optoelectronics and Advanced Materials - Rapid Communications, 9, 5-6, May-June 2015, pp.626-629 (2015).
Submitted at: July 12, 2014
Accepted at: May 7, 2015
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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