Effect of Nd-Doping on the Optical and Microwave Absorbing Properties of BaTiO3

Nd-doped BaTiO3 nanocrystallines powder was prepared with modified sol-gel method. Microstructure, photoluminescence and high-frequency electromagnetic properties of the as-synthesized nanocrystallines were characterized by X-ray diffraction (XRD), IR, fluorescence spectrum and vector network analyzer respectively. It is observed that the samples crystallized well after sintered at 750 degrees C for 1h. With the increase of Nd content, both of the lattice constant and the grain size of BaTiO3 nanocrystallines decreased, while intensity of green luminescence peak of the powder increased. For BaTiO3 powders doped with 5% Nd, the reflection loss and bandwith increased, and the reflection peak blue-shifted within the tested microwave band compared to that without dopant. Finally, both photoluminescence and microwave absorption properties of the BaTiO3 can be improved through doping with Nd.