Stationary and time-resolved luminescent characteristics were investigated in a large
number of poly (p-phenylene vinylene)(PPV) samples including as-grown films on different
substrates, those subjected to thermal curing and vapor-phase iodine doping. The thermal
treatment changes the intensity and characteristic time of photoluminescence in different
manner for different luminescence lines. The iodine doping causes an additional
luminescence peak at the photon energy 2.61 eV with simultaneous suppression of the …