PEDOT:PSS/planar-Si Hybrid Solar Cells with 12.70 Efficiency

摘要

In the paper, we demonstrate efficient hybrid solar cells based on the Poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS) and planar Silicon with a hydrogen-terminated Si (H-Si) surface. PEDOT:PSS/planar Si hybrid solar cells show high power conversion efficiency (PCE) of 8.27~ 12.70%. The cell with the PCE of 12.70% presents short circuit current density (Jsc), open circuit voltage (Voc) and fill factor (FF) of 20.92 mA/cm~2, 0.63 V and 70.26%, respectively. The better contact of PEDOT:PSS film with the Si substrate is contributed to the formation of effective PEDOT:PSS/Si heterojunction, resulting in the enhanced photovoltaic performances.