LUMINESCENCE STUDIES OF PYRENE DOPED ANTHRACENE POWDER

Polycrystalline phosphors of anthracene with varying concentration of pyrene have been prepared. Photoluminescence spectra of these pyrene d oped anthracene phosphors are recorded in spectrofluorometer. The inte nsity of anthracene emission has been found to increase with addition of pyrene. This increase in intensity with concentration of pyrene is attributed to triplet-triplet annihilation process. Electroluminescenc e and Photoelectroluminescence in synthesized phosphors have also been studied. The results have been interpreted by proposing a possible me chanism.