Platinum nanoparticle interlayer promoted improvement in photovoltaic performance of silicon/PEDOT:PSS hybrid solar cells

摘要: Abstract Inorganic–organic hybrid solar cells have attracted considerable interest in recent years for their low production cost, good mechanical flexibility and ease of processing polymer films over a large area. Particularly, silicon/conducting are extensively investigated widely believed to be low-cost alternative the crystalline silicon cells. However, power conversion efficiency remains case hydrogen-terminated is used. In this paper, we report that by introducing platinum nanoparticle interlayer between conducting poly(3,4-ethylenedioxy thiophene):poly(styrene sulfonate), namely PEDOT:PSS, resulting Si/PEDOT:PSS can improved factor 2–3. The possible mechanism responsible improvement has been using different techniques including impedance spectroscopy, Mott–Schottky analysis intensity modulated photocurrent/photovoltage spectroscopy (IMPS/IMVS). results show with interlayer, both series resistance charge transport/transfer reduced leading an increased short circuit current density, built-in voltage at space region raised facilitating electron-hole separation. Moreover, lifetime carriers extended, namely, recombination effectively suppressed which also contributes photovoltaic performance.