Eu(TTFA)3-doped SiO2 hybrid spheres are synthesized by the modified St?ber method and seed growth method,and characterized by the transmission electron microscope and fluorescence spectrometer.The results show that SiO2 hybrid spheres doped wih Eu(TTFA)3 synthesized by both the two methods have smooth surface and good monodispersity and exhibit the characteristic photoluminescence of the Eu3+ ions.After Eu(TTFA)3 doped into SiO2 spheres,the absorption intensities of the ligand TTFA obviously increase in the short wavelength range and its maxium accordingly shifts about 20 or 30 nm to shorter wavelength.Under the influence of SiO2 matrix,5D0→7F2 transition of Eu3+ ions doped into SiO2 spheres still appears to be narrow and its fluorescent peaks slightly change.