Preparation and luminescent properties of inorganic polymer nano - Structured hybrid films doped with rare earth complexes

The inorganic/polymer hybrid films with good luminescent properties have be en obtained by the sol - gel process via incorporating the polymer componen t doped with rare earth complexes. These films exhibit good toughness and t ransparency. Their fluorescence spectra and lifetimes indicate that they al l have the characteristic luminescence of the central rare earth ions. The lifetimes of these films are longer than those of pure complexes. TEM have showed that the rare earth complexes are dispersed homogeneously in SiO2/PV B interpenetratiny networks, and the dispersed size is between 20 and 30 nn .