초록 |
Recently polymer solar cells have attracted keen interest because of their potential for low-cost energy. To date, the most popular combination is polymer/fullerene bulk heterojunction structures with an efficiency of ~7 %, even though their stability has been issued because the fullerene molecules exhibit continuous evolution under solar light illumination. Hence, in terms of reliability, polymer/polymer solar cells have been recognized as one of the best candidates though their efficiency is relatively poor. In this presentation, we tried to synthesize new electron-accepting polymers and applied them to make polymer/polymer solar cells. In particular, a couple of co-solvents have been attempted to improve the device performance. |