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Progress In Electromagnetics Research Letters
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BaZrO3:YB NANOPHOSPHOR FOR EFFICIENT UP-CONVERSION LIGHT EMISSION

By L.-A. Diaz-Torres, E. De-la-Rosa, J. Oliva, P. Salas, and V. M. Castano

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Abstract:
Strong visible green upconversion emission in nanocrystalline BaZrO3:Yb3+ powder, obtained by a hydrothermal process at 100ÂșC, is reported. The unconverted emission has a quadratic dependence on the pump intensity with a lifetime around half that of the NIR lifetime. Results suggest cooperative upconversion as the mechanism responsible for the green fluorescence. This efficient Yb3+-based cooperative up-conversion process allows the development of novel emitting materials in the UV-VIS range.

Citation:
L.-A. Diaz-Torres, E. De-la-Rosa, J. Oliva, P. Salas, and V. M. Castano, "Bazro3:Yb Nanophosphor for Efficient Up-Conversion Light Emission," Progress In Electromagnetics Research Letters, Vol. 11, 139-148, 2009.
doi:10.2528/PIERL09082403

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