Abstract
Silicon is a high-performance material for solar cells. The hybrid solar cells combine the advantages of organic solar cells and inorganic solar cells. This study used PEDOT:PSS as the p-type organic semiconductor material and Si substrate as the n-type inorganic material to fabricate hybrid solar cells. Various device fabrication parameters were investigated systematically. We first discussed the influences of the native oxide forming time on the PEDOT:PSS coating. Then, we studied the influences of PEDOT:PSS coating spin rate and coating time on the device performance. The optimal device fabrication parameters were found to be a native oxide forming time of 4 hr and the PEDOT:PSS coating spin rate and time of 3000 rpm and 60 s, respectively. The Si/PEDOT:PSS solar cell based on the optimal fabrication parameters has exhibited a power conversion efficiency of 5.811%.