Organic thin film photovoltaic cells based on planar and mixed heterojunctions between fullerene and a low bandgap oligothiophene

The material [alpha]-[omega]-bis-(dicyanovinylen)-sexithiophen (DCV6T) is described as donor material in organic solar cells. The solar cell using the hybrid-planar-mixed heterojunction has achieved the best combination of parameters and the mixed heterojunction solar cells have improved currents.