Design and Optimization of an Efficient Molybdenum Disulfide (MoS2) Solar cell with Tin Sulfide BSF

Abstract

Two-dimensional molybdenum disulfide (MoS2) is a potential sunlight harvester due to low cost, layered type atomic structure, favorable electrical and optical properties. The performance of a molybdenum disulfide (MoS2) photovoltaic cell is investigated by using the wxAMPS simulator. The hidden potentiality of MoS2 is unfolded by using BSF strategy. The photoconversion efficiency is found 21.39% (Jsc = 29.89 mA/cm2, Voc = 0.841V and FF=0.856) for 1 μm MoS2 absorber layer with 100 nm SnS BSF whereas in conventional structure, it is found 19.48% (Voc = 0.826V, Jsc = 27.848 mA/cm2, and FF = 0.846) without BSF for 1 μm MoS2 absorber layer. The measured temperature coefficient (TC) is -0.047%/°C for conventional photovoltaic cell structure and -0.046%/°C for a modified structure with SnS BSF. It indicates the better thermal stability of the modified structure compared to the conventional structure.