Thermographic applications of temperature sensitive fluorescence of SrS:Cu phosphors

The present work aims at investigating the temperature sensitive fluoro-optic behaviour of cu-activated strontium sulphide (srs) phosphors and its possible application in thermography. accordingly,srs (cu) phosphors have been synthesized and painted with the help of adhesive on silica substrate. the excitation and emission spectra of such phosphor coatings have been recorded at room temperature (25°c). the temperature dependence of fluorescence intensity and the lifetime of phosphorescence have also been studied. from the systematic variation of these two parameters with temperature,it appears that these phosphors are good candidates for thermographic application,at least,in the temperature range of investigation (25-150°c) © school of engineering,taylor?s university.