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Bazro3:Yb Nanophosphor for Efficient Up-Conversion Light Emission

By Luis-Armando Diaz-Torres, Elder De-la-Rosa, Jorge Oliva, Pedro Salas, and Victor M. Castano
Progress In Electromagnetics Research Letters, Vol. 11, 139-148, 2009


Strong visible green upconversion emission in nanocrystalline BaZrO3:Yb3+ powder, obtained by a hydrothermal process at 100ºC, 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.


Luis-Armando Diaz-Torres, Elder De-la-Rosa, Jorge Oliva, Pedro Salas, and Victor M. Castano, "Bazro3:Yb Nanophosphor for Efficient Up-Conversion Light Emission," Progress In Electromagnetics Research Letters, Vol. 11, 139-148, 2009.


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