Article ID Journal Published Year Pages File Type
5399564 Journal of Luminescence 2014 4 Pages PDF
Abstract
Energy transfer processes from Tb3+ 4f75d state to Gd3+ 4f7 state and from Gd3+6P7/2 state to Tb3+ 4f8 state occur in La0.99−xGdxTb0.01PO4 under Tb3+ 4f75d state excitation. The decay of Gd3+6P7/2 state upon Tb3+ 4f75d state excitation is faster than that upon Gd3+6IJ state excitation when Gd3+ concentration is lower than 30 mol%. A model describing different decay properties of Gd3+6P7/2 state was established and corresponding semiquantitative analysis was given. It was observed that the energy transfer efficiency from Gd3+ to Tb3+ was increasing with increase of Gd3+ concentration and an efficiency of close to 100% in Gd0.99Tb0.01PO4 was determined.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
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