Advanced Materials, Vol.26, No.35, 6125-6125, 2014
Dielectric Effect on the Photovoltage Loss in Organic Photovoltaic Cells
The V-OC loss in several polymer-fullerene solar cells is determined. Based on these data, a major source of photovoltage loss is attributed to the low dielectric constants of the polymers. Such loss is close to zero if the dielectric constant of the polymer-fullerene blend is close to 5.