Analysis of Er3+ incorporation in SnO2 by optical investigation

Er3+ emission in the wide bandgap matrix SnO2 is observed either through a direct Er ion excitation process as well as by an indirect process, through energy transfer in samples codoped with Yb3+ ions. Electron-hole generation in the tin dioxide matrix is also used to promote rare-earth ion excitati...

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Bibliographic Details
Published in:Brazilian journal of physics 2006-06, Vol.36 (2a), p.270-273
Main Authors: Morais, Evandro A. de, Scalvi, Luis V. A., Martins, Márcio R., Ribeiro, Sidney J. L.
Format: Article
Language:English
Subjects:
PHYSICS, MULTIDISCIPLINARY
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Summary:Er3+ emission in the wide bandgap matrix SnO2 is observed either through a direct Er ion excitation process as well as by an indirect process, through energy transfer in samples codoped with Yb3+ ions. Electron-hole generation in the tin dioxide matrix is also used to promote rare-earth ion excitation. Photoluminescence spectra as function of temperature indicate a slight decrease in the emission intensity with temperature increase, yielding low activation energy, about 3.8meV, since the emission even at room temperature is rather considerable.
ISSN:0103-9733
1678-4448
DOI:10.1590/S0103-97332006000300010