Conducting polymer polythiopene (PT) films incorporated with highly-functional molecules such as copper phthalocyanine (CuPc), fullerene (C60) and rhodamine B (RB), further, tetrathiafulvalene (TTF) which is an donor and tetracyanoquinodimethane (TCNQ) which is an acceptor were synthesized and characterized by photoluminescence measurements (PL), time correlated single photon counting (TCSPC) life time measurements and fourier transform infrared spectroscopy (FTIR) in order to obtain fundamental photoluminescence properties of the polymer complexes. Those molecules were doped in the polymer film by the diffusion method. The solvents used in the doping process were acetonitrile or toluene. In the FTIR measurement, the molecular vibration mode of each molecule was observed in each polymer, and it was observed that each molecule had been doped in PT film. A photoluminescence single emission peak was observed at 610 nm in the case of PT doped sample with CuPc by diffusion method. Adding TCNQ molecules to the CuPc diffused PT sample by the diffusion method made the emission peak position varied and the photoluminescence intensity varied. A photoluminescence double emission peak was observed at 590nm and 738nm in the case of PT doped sample with C60 by diffusion method. Double emission peak was observed at 610nm and 663nm when TTF was added after CuPc doping. When TCNQ was added after CuPc doping, emission peak became a 480nm single peak. A photoluminescence double emission peak was observed at 590-660 nm in the case of PT doped sample with RB by diffusion method. In the case of using acetonitrile as a solvent, emission peaks were 610nm and 660nm. In the case of using toluene as a solvent, emission peaks were 590nm and 660nm. As for intensity, the low wavelength side became stronger. Adding TTF and TCNQ molecules to the RB diffused PT sample by the diffusion method made the emission peak position varied and the photoluminescence intensity varied. In the case of PT doped RB and TTF using toluene as a solvent, emission peak was a 590nm single peak. In the TCSPC measurements, 2 or 3 life time components with several tens of nsec to several hundreds of nsec existed in the case of highly-functional molecules doped PT. Adding TTF or TCNQ caused the life time change in the components. It suggests that the change of the emission states in the polymer complexes causes the shift of the emission peaks and the change in intensity.

This work was aided by MEXT-supported Program for the Strategic Research Foundation at Private Universities.