Effect of Grain Size on the Luminescent Properties of Nano-Scale Gd2O3:Eu
Nano-scale Gd2O3:Eu phosphor powders were synthesized by combustion method. In this process, the grain sizes of nano-scale Gd2O3:Eu were controlled by changing the amount of citric acid. Compared with micro-scale powders obtained from co-precipitation process, XRD revealed that the lattice parameter of nano-scale powders Gd2O3:Eu decreased. Further detailed study show that the luminescent properties were related to the grain size of nano Gd2O3:Eu powders under UV excitation.
M. Gupta and Christina Y.H. Lim
Q. F. Liu and Q. Liu, "Effect of Grain Size on the Luminescent Properties of Nano-Scale Gd2O3:Eu", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 15-18, 2005