| 초록 |
We successfully synthesized new D-A copolymers that contain 1,1’-bithienopyrrolodione (biTPD), thiophene, and selenophene-based donor monomeric units. Two polymers, PBTPDEBT and PBTPDEBS, exhibited high degrees of crystallinity and unique polymer chain arrangements on the substrate, which is attributed to their enhanced co-planarity and intermolecular interactions between the polymer chains. Among the thin-film transistor devices made of PBTPDEBT and PBTPDEBS, the annealed PBTPDEBS film-based device displayed relatively high hole mobility, which was twice that of the PBTPDEBT-based device. In addition, a photovoltaic device based on a PBTPDEBS:PC71BM blend displayed the maximum power conversion efficiency of 3.85%. |
