Artículos de revistas
Analysis of Er3+ incorporation in SnO2 by optical investigation
Fecha
2006-06-01Registro en:
Brazilian Journal of Physics. Sociedade Brasileira de Física, v. 36, n. 2a, p. 270-273, 2006.
0103-9733
10.1590/S0103-97332006000300010
S0103-97332006000300010
S0103-97332006000300010.pdf
6446047463034654
0000-0003-3286-9440
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
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.