| Summary: | 碩士 === 國立高雄應用科技大學 === 化學工程與材料工程系 === 97 === Conjugated polymers are one of the important organic semiconductors material, which were used for light emitting diodes, photovoltaic cells, filed emission transfer, thin film transistor etc. The polymer photovoltaic cells have attracted much attention due to their possibilities of low-production cost, light-weight, flexible and easy manufacturing by solution process in recent years.
Thus, a novel series of soluble alternating and random conjugated copolymers: poly{(3-hexylthiophene)-alt-(thiophene)}(PT6-Ths-alt.) and poly{(3-hexylthiophene)
-alt-(carbazole)}(PT6-Cz) were synthesized by Ni-catalyzed Kumada coupling reaction. In addition, random copolymers (PT6-P6s-ran.) were copolymerized by oxidative method based on different ratios of 3-hexylthiophene and N-hexylpyrrole units.
To identify structure nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy (FT-IR) were used, physical properties via gel permeation chromatography (GPC), thermal stability properties via thermogravimetric analysis (TGA) and differential scanning calorimetry analysis (DSC). Optical properties, UV-visible absorption (UV-vis), fluorescence (PL), and photo-electron spectroscopy in air (PESA) spectra. In addition, device properties were measured by solar simulator system (SMU), respectively. The observed characteristics are sufficiently better to make these polymers highly promising for the polymer photovoltaic cell applications.
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