Title of article
The optical spectroscopic properties of rare earth-activated barium orthophosphate in VUV-Vis range
Author/Authors
Liang، نويسنده , , Hongbin and Tao، نويسنده , , Xin Ye and Zeng، نويسنده , , Qinghua and He، نويسنده , , Hong and Wang، نويسنده , , Shubin and Hou، نويسنده , , Xueying and Wang، نويسنده , , Wei and Su، نويسنده , , Qiang، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
9
From page
797
To page
805
Abstract
The optical properties of rare earth ions-activated barium orthophosphate phosphors, Ba3(PO4)2:RE (RE=Ce3+, Sm3+, Eu3+, Eu2+, and Tb3+), were investigated in vacuum ultraviolet (VUV)-Vis range. A band–band transition of PO43− in Ba3(PO4)2 is observed in the region of 150–170 nm. The partial reduction of Eu3+ to Eu2+ was observed and confirmed by luminescent spectra under the VUV–UV excitation. It is proposed that the electronegative defects that formed by aliovalent substitution of Eu3+ on the Ba2+ site in the host are responsible for the reduction process.
Keywords
A. Inorganic compounds , D. Luminescence
Journal title
Materials Research Bulletin
Serial Year
2003
Journal title
Materials Research Bulletin
Record number
2096244
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