PHOTOLUMINESCENCE OF POLY (3-METHYL THIOPHENE)——P3MT

The photoluminescence spectra of conducting polymer P3MT with different doping densities at different excitation intensities and temperatures are reported. It is demonstrated experimentally that there are three kinds of radiative transitions, i.e., direct interband transition, recombination of exciton and radiative transition between polaron level and edge of band for the conducting polymer P3MT with nondegenerate ground state.