| 초록 |
Polymer solar cells (PSCs) have attracted considerable attention recently due to their advantages of light weight, flexibility, and facile large-scale fabrication. In order to obtain a high-efficiency bulk heterojunction (BJH) solar cell, numerous chemical and structural parameters (e.g., conjugated backbone and side chains) must be rationally designed and then adjusted. In particular, the donor-acceptor (D-A) concept is widely utilized to design the main chain of conjugated polymers for PSCs. A quinacridone which is known as a red-violet pigment, has an ordered structure, self-assembled characteristics nitrogen atoms, which has ethylhexyloxy chains at the meta-positon (mEH) of the phenyl ring for solubility. In this study, we synthesized D-A type copolymer using quinacridone as the D-unit with mEH-quinoxaline as the A-unit by Suzuki coupling reaction. This polymer is showed physical, optical, electrochemical and photovoltaic properties. |
