| 초록 |
Poly[4,7-dithiophen-2-yl-benzo(1,2,5)thiadiazole]-alt-9,9-dihexyl-9H-fluorene (PFTBT) was synthesized by the Suzuki coupling polymerization. Molecular weight of polymers were controlled by the reaction time and feed ratios of monomers. The photovoltaic devices based on the each polymer have been fabricated. We investigate change of photovoltaic properties via controlled molecular weight of polymers. In this presentation, synthesis, optical, electrochemical and photovoltaicproperties of photovoltaic cells using PFTBT with various Mw will be discussed. |
