Abstract
The decay behavior of was monitored as a function of the detection wavelength on the emission band for various concentrations from 0.0005 to 0.05. The decay at the higher-energy side was faster and less linear than the lower-energy side decay for all concentrations. This was due to an inhomogeneous broadening induced by the random distribution of Al and Si ions at a crystallographic site in the structure and to the successive site-to-site energy transfer. This phenomenon caused a redshift of the emission band as the concentration increased.
© 2010 Optical Society of America
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