| AVS 54th International Symposium | |
| Electronic Materials and Processing | Thursday Sessions |
| Session EM-ThP |
| Session: | Electronic Materials and Processing Poster Session |
| Presenter: | H. Kato, Kanto Gakuin University, Japan |
| Authors: | H. Kato, Kanto Gakuin University, Japan S. Takemura, Kanto Gakuin University, Japan H. Kobe, Kanto Gakuin University, Japan Y. Mori, Kanto Gakuin University, Japan Y. Matsuoka, Kanto Gakuin University, Japan Y. Watanabe, Kanto Gakuin University, Japan K. Shimada, Kanto Gakuin University, Japan T. Hiramatsu, Kanto Gakuin University, Japan N. Nanba, Kanto Gakuin University, Japan K. Matsui, Kanto Gakuin University, Japan |
| Correspondent: | Click to Email |
Conducting polymer polythiopene (PT) films incorporated with highly-functional molecules such as copper phthalocyanine (CuPc), fullerene C60, rhodamine B and TCNQ was synthesized and characterized by photoluminescence measurements in order to fabricate organic optical hybrid materials. The electrochemical polymerization was performed in acetonitrile containing thiophene monomer and (Et)4NBF4 as a supporting electrolyte and the polymerization on an ITO substrate was conducted by applying positive voltage to the anode. The molecule was injected by electrochemical and diffusion methods. A photoluminescence emission peak was observed at 594 nm in the case of PT doped sample with CuPc by diffusion method. The emission peak was observed at 540 nm shifted to the lower wavelength in the case of electrochemically positive voltage applied sample after CuPc was diffused into the PT. Fourier transform infrared spectroscopy (FTIR) measurements suggested the partial deformation of the aromatic structure of CuPc and a polymer-CuPc linkage. Adding C60 molecules to the CuPc diffused PT sample by the diffusion method made the emission peak shift to the higher wavelength at 730 nm suggesting the molecular interaction between CuPc and C60 in the photoluminescence emission process because double emission peaks were observed at 590 and 735 nm in the case of single doping of C60. Double doping of C60 and CuPc in PT was also investigated by FTIR. In the case of single doping of C60, successive electrochemical process made the double emission peaks a single peak at 580 nm. The FTIR measurements suggested charged states of C60 or a polymer-C60 linkage. The present work clarified that the photoluminescence emission peak position varied and was controlled by electrochemically applying voltage or adding specific molecules. This work was supported by High-Tech Research Center Project aided by MEXT.