Advanced Materials Processing For Scalable Solar Cell Manufacturing

Advanced Energy Materials Early View February 4th, 2019 To predict the open―circuit voltage V oc of polymer–fullerene solar cells three independent methods square―wave voltammetry SWV ultraviolet photoelectron spectroscopy and density functional theory are compared For 19 diketopyrrolopyrrole polymers SWV gives the best correlation Remarkably the slope of V oc with the blend s electrochemical gap is less than unity and possible