Abstract
In this article, we discuss the inkjet printing of silver nanoparticle ink and PEDOT: PSS (poly (3,4-ethylene dioxythiophene) polystyrene sulfonate for indium tin oxide-free organic solar cells. We observed that the significant parameters for the printing of silver nanoparticle ink and PEDOT: PSS are waveform parameters voltage and time, substrate temperature, drop spacing and annealing temperature. Organic solar cells were fabricated over grids with three different line spacing (1 mm, 2 mm and 3 mm) and better performance was observed for grids with 2 mm spacing. The figure of limit, which is the ratio between the optical transmission and sheet resistance, was used as a tool to evaluate the performance of the current collecting grid. The figure of limit was high for grids with 2 mm spacing (), which confirmed the experimental results.
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