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Preparation of PbF2:Er3+,Yb3+ Phosphors and Multi-Wavelength Sensitive Bidirectional Conversion Luminescence Mechanism
Author NameAffiliationE-mail
MA Xiao-Yi School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China  
LI Biao School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China  
WANG Yi-Fan School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China  
HU Pan School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China  
YAN Tong-Ting School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China  
BAI Zhao-Hui School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China zhaohuibai@126.com 
Abstract: PbF2:Er3+,Yb3+ bidirectional conversion phosphors were successful prepared by the high temperature solid-state reaction method. The samples were characterized by X-ray powder diffraction (XRD), general structure analysis system structure refinement, the intensity-power test and fluorescence spectrum method. XRD and Rietveld refinement were performed to analyze the phase composition and the changes of cell parameters. The fluorescence spectra analysis showed the samples exhibited the intense green emissions in the range of 540~550 nm and weak red emission in the range of 650~660 nm when excited at ultraviolet (378 nm) and different infrared wavelengths (808, 980, 1 064 and 1 550 nm). Finally, luminescence mechanisms excited at different infrared wavelengths were discussed by means of the intensity-power test, and the down-conversion (DC) luminescence mechanism excited at 378 nm was analyzed.
Keywords: lead fluoride  high temperature solid-state method  Er3+-Yb3+ co-doped  bidirectional conversion  multi-wavelength sensitive
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MA Xiao-Yi,LI Biao,WANG Yi-Fan,HU Pan,YAN Tong-Ting,BAI Zhao-Hui.Preparation of PbF2:Er3+,Yb3+ Phosphors and Multi-Wavelength Sensitive Bidirectional Conversion Luminescence Mechanism[J].Chinese Journal of Inorganic Chemistry,2019,35(4):711-719.
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Chinese Journal of Inorganic Chemistry