Title of article
Photoluminescence in quasi-amorphous Pb0.8X0.2Zr0.53Ti0.47O3 (X = Ca, Sr and Ba) powders: An optical and structural study
Author/Authors
Longo، نويسنده , , V.M. and Silva، نويسنده , , M.S. and de Figueiredo، نويسنده , , A.T. and Franco، نويسنده , , R.W.A. and Vila، نويسنده , , C. and Cilense، نويسنده , , M. and Varela، نويسنده , , J.A. and Longo، نويسنده , , E. and Andrés، نويسنده , , J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
5
From page
96
To page
100
Abstract
Crystalline and quasi-amorphous PZT and PZT:X (X = Ca, Sr and Ba) powders were obtained by the polymeric precursor method. Electron paramagnetic resonance (EPR) and photoluminescence (PL) data suggest that the presence of order–disorder within the lattice network, i.e., the appearance of symmetry-breaking processes that give rise to non-ideal octahedra and networks of dodecahedral clusters, is an essential factor for the occurrence of PL. Measurements of PL indicate that the shallow defects in the band gap enhance blue light emission.
Journal title
Chemical Physics Letters
Serial Year
2009
Journal title
Chemical Physics Letters
Record number
1926719
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