Luminescence and X-ray absorption studies on 0.5% Ce3+ doped BaCa2MgSi2O8 phosphor
Luminescence and X-ray absorption studies on 0.5% Ce3+ doped BaCa2MgSi2O8 phosphor
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发光%20and%20X射线%20吸收%20研究%20on%200.5%%20Ce3+%20掺杂%20BaCa2MgSi2O8%20磷光体
DOI：
10.1039/c5cp03668b
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发表时间：
2015-01-01
影响因子：
3.3
通讯作者：
Tao, Ye
中科院分区：
文献类型：
--
作者：
Hou, Dejian;Zhou, Weijie;Tao, Ye
0.5% Ce3+ doped BaCa2MgSi2O8 phosphor was prepared by a conventional solid state reaction method. Luminescence spectra as well as fluorescence decay were monitored in the VUV-UV range. Ce3+ emissions are assigned to cerium ions on a Ba2+ site, and the five 4f-5d excitation bands of Ce3+ were determined at low temperature. The light yield is estimated to be around 10 600 ph MeV-1 under X-ray excitation. X-ray absorption near-edge structure (XANES) was explored to study the energy transfer efficiency to optical centers from each element in the phosphor; the results show that the contributions to luminescence are not identical for each element.
