| 초록 |
The main chain conjugated polymers containing electron donor (D) and acceptor (A) in an alternative manner have been proposed in many literatures, which showed highly effective electron delocalization along the polymer chains owing to push-pull structures. Among many kinds of D-A copolymers, some representative fused-thiophene containing polymer systems showed much higher charge carrier mobility due to strong stacking interaction in the solid state. In this study, we synthesized new low bandgap alternating conjugated copolymer containing tetrathienoacene (TTA) and dithienothiophene (DTT) which are fused heteroaromatic ring monomers and characterized their physical properties. Thermal analysis, cyclic voltammetry and absorption spectroscopy were also employed to investigate their unique properties. Finally, we fabricated thin film transistor devices to study their charge carrier transport properties. |
