Title of article
Structural XANES characterization of Ca0.99Sm0.01TiO3 perovskite and correlation with photoluminescence emission
Author/Authors
de Figueiredo، نويسنده , , A.T. and Longo، نويسنده , , V.M. and da Silva، نويسنده , , R.O. and Mastelaro، نويسنده , , V.R. and Mesquita، نويسنده , , A. and Franco، نويسنده , , R.W.A. and Varela، نويسنده , , J.A. and Longo، نويسنده , , E.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
6
From page
43
To page
48
Abstract
In this work, CaTiO3:Sm (CT:Sm) were prepared by a soft chemical processing at different annealing temperatures starting with a disordered structure and reaching an ordered one, with the propose to understand the relationship between structural order–disorder and photoluminescence emission. The samples were characterized by titanium K-edge, Titanium LII and LIII-edge XANES, electron paramagnetic resonance (EPR) and photoluminescence (PL) measurements. XANES results clearly point the presence of local distortion in [TiO6] octahedral clusters until the crystallization was completed. The interactions of the network clusters that form the CT:Sm structures provides favorable structural and electronic conditions for the appearance of PL phenomena.
Journal title
Chemical Physics Letters
Serial Year
2012
Journal title
Chemical Physics Letters
Record number
1933545
Link To Document