| 초록 |
Organic photovoltaics(OPVs) have attracted substantial attention due to its low cost, light weight, and potential use in flexible devices. The Benzodithiophene(BDT) derivatives have large planar conjugated structure, ideal for efficient π-π stacking as a electron-rich donor. The quinoxaline(Qu) derivatives have also high planarity and increased to facilitate both intermolecular packing and charge transport. Moreover, the fused quinoxaline with extended π-conjugation length and decreasing the steric hindrance by forming a planar structure acts as a strong electron-deficient acceptor. In this study, We synthesized new conjugated copolymers using BDT and Qu derivatives by stille coupling reaction. The synthesized polymers were investigated their properties for OPVs. |
