Chinese Optics Letters, 2015, 13 (7): 071601, Published Online: Sep. 14, 2018  

Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs

Author Affiliations
1 Key Laboratory of Photo-Electronic Materials, Ningbo University, Ningbo 315211, China
2 Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315211, China
3 Department of Physics, Dalian Maritime University, Dalian 116026, China
Abstract
The absorption spectra, excitation spectra, and emission spectra of Tb3+/Eu3+ ions in LiYF4 single crystals synthesized by an improved Bridgman method are measured. The emission spectra of several bands, mainly located at blue 487 nm (Tb:D45F76), yellowish green 542 nm (Tb:D45F75), and red 611 nm (Eu:D05F72) wavelengths, are observed under excitation by UV light. An ideal white light emission as a result of simultaneous combination of these emissions can be obtained from 1.11 mol%

Yongzhang Jiang, Haiping Xia, Shuo Yang, Jiazhong Zhang, Dongsheng Jiang, Cheng Wang, Zhigang Feng, Jian Zhang, Xuemei Gu, Jianli Zhang, Haochuan Jiang, Baojiu Chen. Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs[J]. Chinese Optics Letters, 2015, 13(7): 071601.

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