ENERGY-TRANSFER IN MOLECULARLY DOPED CONJUGATED POLYMERS

We present a derailed investigation of energy transfer of optical exci tations in a molecularly doped conjugated polymer. We have incorporate d dye molecules into a polymer blend system consisting of poly (phenyl phenylene vinylene) (PPPV) and polycarbonate. Using time-resolved lumi nescence spectroscopy we observe efficient picosecond energy transfer from the PPPV chromophores to the dye ethylene-2-methyl-6-p-dimethylam inostyryl-4H-pyran (DCM) molecules. Our results are interpreted in ter ms of Forster-type energy transfer.