Abstract
In this paper, we report the physical and spectroscopic properties of Er 3+, Sm 3+ and Er 3+:Sm 3+ ions codoped barium fluorotellurite (BFT) glasses. Different Stokes and anti-Stokes emissions were observed under 532 nm and 976 nm laser excitations. Energy transfer from Er 3+ ion to Sm 3+ ion was confirmed on the basis of luminescence intensity variation and decay curve analysis in both the cases. Under green (532 nm) excitation emission intensity of Sm 3+ ion bands improves whereas on NIR (976 nm) excitation new emission bands of Sm 3+ ions were observed in Er:Sm codoped samples. Ion interactions and the different energy transfer parameters were also calculated.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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