Title of article
On the luminescence of Bi3+ in the pyrochlore Y2Sn2O7
Author/Authors
Srivastava، نويسنده , , A.M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
7
From page
745
To page
751
Abstract
The photoluminescence and the excitation spectra of Bi3+ in the pyrochlore Y2Sn2O7 have been investigated in the temperature range of 15–300 K. The photoluminescence spectrum of Bi3+ in Y2Sn2O7 consists of two bands, one in the ultraviolet (385 nm) and the other in the visible (515 nm) part of the spectrum. The ultraviolet emission is attributed to the 3P0,1→1S0 transition of isolated Bi3+ ions and the visible luminescence to Bi3+ pairs (clusters) in the host lattice. A comparative study of the Bi3+ luminescence in the pyrochlores Y2Sn2O7, La2Zr2O7 and Gd2GaSbO7 is presented.
Keywords
A. Oxides , A. Optical materials , B. Chemical synthesis , D. Luminescence
Journal title
Materials Research Bulletin
Serial Year
2002
Journal title
Materials Research Bulletin
Record number
2095724
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