Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics

We present an in-depth investigation of the morphological evolution of the inkjet printed silver nanopartricles sintering process combined with printed grid design requirements for efficient ITO-free organic photovoltaics (OPVs). We report on ITO-free P3HT:PC60BM and Si-PCPDTBT:PC70BM based OPVs with power conversion efficiency of 2.8 % and 4.9% respectively and minimal losses when compared to reference ITO-based OPVs.