The UV-emission-dye TMQ doped silica film and slab were prepared by the sol-gel process with the maximum concentrations of 1.24×10-2 mol/L and 1.5×10-3 mol/L respectively. Because of the binding effect of the “cage” and the polarity of the “cage” in the silica host, concentration quench of TMQ was not observed in the emission spectra and a 10 nm red shift was found, compared to that of TMQ-cyclohexane solution.