Luminescence properties of K1/2Bi1/2TiO3:Pr3+ and Na1/2Bi1/2TiO3:Pr3+.
The luminescence properties of K(1/2)Bi(1/2)TiO(3):Pr(3+) and Na(1/2)Bi(1/2)TiO(3):Pr(3+) powders are investigated in the temperature range 10-600 K. The experimental data are interpreted on the basis of metal-to-metal charge transfer processes and by considering Bi(3+)-to-Pr(3+) sensitization effects.
Clermont Université, ENSCCF, Laboratoire des Matériaux Inorganiques, Clermont-Ferrand, France. philippe.boutinaud@ensccf.fr
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Boutinaud
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Cavalli
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Velchuri
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Vithal