Affiliation:
1. Beijing Jiaotong University
Abstract
A series of phosphor of MBPO7:Tm3+, and MBPO7:Tm3+, Gd3+ (M= Mg, Sr, Ca) were prepared
and studied. The XRD data showed Tm3+, Gd3+ didn’t affects the lattice parameters. Excitation spectra
exhibited high absorption in vacuum ultraviolet (VUV) region. There existed strong emission peaking at
453nm and 363nm correspond to the 1D2
→3HJ
(J=4, 6) emission transition of Tm 3+ when excited under
VUV. With the changes of cation in the samples, the excitation spectra changed greatly, and lead a great
change in its emission spectra. The crystal lattice parameters affect the ratio of intensity of the peak at
454nm and 312nm.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
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