Electrical characterization of organic/inorganic hybrid solar cells based on silicon nanopillars-poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)

Abstract

Organic/inorganic hybrid Schottky solar cells based on p-type conductive polymer poly(3,4-ethylenedioxythiophene): poly (sty renesulfonate) (PEDOT:PSS) in conjunction with n-type silicon substrates offer the merits of simple fabrication process and potential for lower cost. Here, we report an efficient organic/inorganic hybrid photovoltaic (PV) device based on silicon nanopillar arrays and PEDOT:PSS. The described device was fabricated by spin coating the organic polymer PEDOT:PSS on a silicon nanopillar (SiNP) array textured surface. The fabricated devices were characterized by collecting the current density-voltage and capacitance-voltage measurements. For the optimized geometry of the device, a promising power conversion efficiency (PCE) in excess of 10.50% has been achieved. The described device paves a promising way for developing low-cost, relatively high efficiency PV device in the future.