Fig. 4: Mechanism analysis of the organic photovoltaic vertical field-effect transistors.
From: High-performance vertical field-effect organic photovoltaics

a, b Theoretical simulation of electric potential distribution at VGS = 1 V. c Gate leakage current of the VFEOPVs. d, e Theoretical simulation of current density distribution at VGS = 1 V. f Plots of eVOC against Eg for organic solar cells with low Eloss or high Voc. The blue dashed line is the Eloss of 0.5 eV, and the red solid line is the Eloss = 0.2 eV. The PCEs are shown in parentheses. The number of points corresponds to the structures and device parameters listed in Table S3 in the Supplementary Information.