Red to blue tunable upconversion in Tm3+-doped ZrO2 nanocrystals.


The effect of dopant concentration on the blue upconversion (UPC) emission of Tm(3+) -doped ZrO(2) nanocrystals under different excitation wavelengths in the red region is reported. The UPC emissions are due to the f-f electronic transitions from excited states (1)G(4) and (1)D(2) of Tm(3+). We observed a chromatic change in the UPC with tuning the… (More)


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@article{Patra2005RedTB, title={Red to blue tunable upconversion in Tm3+-doped ZrO2 nanocrystals.}, author={Amitava Patra and Pushpal Ghosh and Paramita Saha Chowdhury and M{\'a}rcio A. R. C. Alencar and B Whualkuer Lozano and Nikifor Rakov and Glauco S Maciel}, journal={The journal of physical chemistry. B}, year={2005}, volume={109 20}, pages={10142-6} }