Abstract
Monodisperse hexagonal TbPO 4· nH 2O hollow spheres were successfully obtained by utilizing Tb(OH)CO 3 colloidal spheres as the precursor and NH 4H 2PO 4 as the phosphorus source through the hydrothermal process. The obtained hollow spheres were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), respectively. They have the average diameter of 200 nm. There are a number of tiny nanorods with the length of about 60 nm on the surface of the spheres. The obtained TbPO 4 hollow spheres exhibit green color emission from 5D 4 − 7F J ( J = 6, 5, 4, 3) transitions of the Tb 3+ ions, which are expected to be applied in display applications and biological applications.
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