Abstract

In this work photo-luminescence epoxies samples by eosin y dye were fabricated. Eosin Y used as substance in the treating of epoxy resin to form photo-luminescence epoxies of five different concentrations ( 4x10^-5, 8x10^-5, 2x10^-4, 6x10^-4,1x10^-3) moles/L. The absorbance spectra and the florescence intensities of the all fabricated photo-luminescence epoxy samples were measured with spectrometer and fluorescence spectrophotometer respectively. The fluorescence quantum efficiency, fluorescence life-time ,and radiative life-time from all photo-luminescence epoxies were reported. Optimal fluorescence quantum efficiencies are between the extent of the limits of concentrations ( 2x10^-4- 1x10^-3 ) moles/L .The quantum efficiencies of fluorescence for photo-luminescence samples are (75.5%, 77%, 84.8%, 93%, 85.8%) respectively with the five different concentrations above.