Controllable synthesis and luminescence property of CePO4:Tb nanorods.

Highly luminescent Tb³⁺-doped CePO₄ with 1D nanostructures were prepared by a simple hydrothermal method. The obtained CePO₄:Tb has a hexagonal or monoclinic structure under different synthetical process. Uniform 1D nanorods with diameters between 40 and 500 nm, and the length ranging from several hundred nanometres to several micrometres were obtained. It is easy to increase the sizes of the samples by adding some CTAB. Results of the XPS show that there is no Ce⁴⁺ in the samples because of the absence of the signal around 917 eV, which is characteristic of Ce⁴⁺. The study of the photoluminescence of Tb³⁺-doped CePO₄ indicates that the luminescent properties of these nanophosphors are strongly dependent on their structures and morphologies. [ABSTRACT FROM AUTHOR]