Interface treatment by oxygen plasma for PEDOT:PSS/silicon hybrid solar cell

Interface plays an important role in photovoltaic devices, due to the existence of surface defects and surface dangling bonds of semiconductor materials. For photovoltaic devices, defects on the surface of semiconductor materials can lead to the recombination of charge carriers at the interface and hinder the transport of carriers in the device, resulting in the degradation of device performance. We presented a simple and efficient method of interface treatment by oxygen plasma for PEDOT:PSS/silicon hybrid solar cell. Compared to the cell without oxygen plasma treatment, the cell with oxygen plasma treatment revealed a significant increase in power conversion efficiency (PCE), which resulted in interface control by oxygen plasma control can be able to effectively optimize the performance of organic-silicon hybrid solar cell.