Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
79674 | Solar Energy Materials and Solar Cells | 2010 | 5 Pages |
In this paper, we report the dependence of fill factor (FF) on different parameters in organic solar cells. FF is a more sensitive parameter compared to open-circuit voltage (VOC) and short-circuit current density (JSC), and depends on the mobility (μ)–lifetime (τ) product of the bulk material, thickness of the active-polymer layer and on the morphology of the cathode–polymer interface. The curvature of the JV characteristics in the fourth quadrant (which can be adjudged by the sign of d2J/dV2 in the range Vsat