| 초록 |
Organic photovoltaic cells(OPVs) have been significantly studied as low cost, low weight, and capability to be fabricated into flexible large area devices by solution process. Bulk heterojunction(BHJ) organic photovoltaic devices are generally composed of a π-conjugated polymeric electron-donor(D) and electron acceptor(A) and they formed a bicontinuous interpenetrating network. This structure is considered as an ideal structure for OPVs, because the BHJ blend can improved photovoltaic performance. Quinacridone, which is known as electron donor, has a high crystallinity, self-assembled characteristics and high hole mobility. Benzothiadiazole is thought to be a acceptor unit since it has a strong electron-withdrawing character. In this work, we synthesized and characterized D-A polymers by Suzuki coupling reaction. We investigated the physical, optical, electrochemical and photovoltaic properties. |
