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Extended X-ray absorption fine structure (EXAFS) study of CaSO4:Dy phosphors

Authors :
D. Bhattacharyya
A.K. Bakshi
G. Aquilanti
G. Ciatto
S. Pascarelli
A.S. Pradhan
Source :
Solid State Communications. 137:650-653
Publication Year :
2006
Publisher :
Elsevier BV, 2006.

Abstract

Extended X-ray absorption fine structure (EXAFS) measurements have been carried out on CaSO4:Dy phosphors at the Dy L3 edge with synchrotron radiation. The data have been analysed to find out the Dy–S and Dy–O bond lengths in the neighborhood of the Dy atoms. Measurements have been carried out over several samples thermally annealed for different cycles at 400 °C in air for 1 h and the change in bond lengths in samples with increasing number of annealing cycles have been studied by analyzing the EXAFS data.

Details

ISSN :
00381098
Volume :
137
Database :
OpenAIRE
Journal :
Solid State Communications
Accession number :
edsair.doi...........daeb915d2fca3e60b2df0e8ce95b2de8
Full Text :
https://doi.org/10.1016/j.ssc.2006.01.030