Analysis of Er3+ incorporation in SnO2 by optical investigation
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Undergraduate course
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Sociedade Brasileira de Física
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Article
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Acesso aberto
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Abstract
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.
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English
Citation
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 36, n. 2a, p. 270-273, 2006.
