Influence of citrate on phase transformation and photoluminescence properties in LaPO and LaPO:Eu.

The hexagonal and monoclinic phase LaPO and LaPO:Eu nanostructures have been controllably synthesized by a citrate-induced hydrothermal process at 100 °C. The crystal growth of LaPO nanostructures was investigated, and the phase transformation of nanostructured LaPO was systematically studied by varying the citrate concentration, pH value and reaction temperature. When 0.

Preparation, characterization and luminescence properties of core-shell ternary terbium composites SiO@Tb(MABA-Si)•L.

Two novel core-shell structure ternary terbium composites SiO@Tb(MABA-Si)·L(L:dipy/phen) nanometre luminescence materials were prepared by ternary terbium complexes Tb(MABA-Si)·L·(ClO)·2HO shell grafted onto the surface of SiO microspheres. And corresponding ternary terbium complexes were synthesized using (CONH(CH)Si(OCHCH)) (denoted as MABA-Si) as first ligand and L as second ligand coordinated with terbium perchlorate. The as-synthesized products were characterized by means of IR spectra, HNMR, element analysis, molar conductivity, SEM and TEM.