Numerical Investigation of a Highly Efficient Hole Transport Layer-Free Solid-State Dye-Sensitized Solar Cell Based on N719 Dye

Over the last few years, considerable efforts have been invested in designing solar cell modules that are envisaged to revolutionize photovoltaic technology towards clean and sustainable energy. Solid-state dye-sensitized solar cells (ssDSSCs) have gained considerable attention because of their robust light harvesting capabilities. Herein, we investigate the performance of a hole transport layer-free (HTL-free) ssDSSC architecture of the configuration ITO/PC61BM/N719 Dye/Ni HTL-free by device simulation using the solar cell capacitance simulator (SCAPS-1D). The results show viable power conversion efficiency (PCE) of 14.51