Prospects of molybdenum disulfide (MoS2) as an alternative absorber layer material in thin film solar cells from numerical modeling

Abstract

Molybdenum Disulfide (MoS2) is a potential low cost, alternative sunlight harvester for a possible replacement of the conventional photovoltaic materials. It is a suitable photovoltaic absorber material mainly due to its optimum optical and electrical properties. In this work, we numerically analyze both hetero-junction and homo-junction device structures of MoS2 by 1D-Solar Cell Capacitance Simulator (SCAPS). Both n-ZnO/nCdS/p-MoS2 and n-MoS2/p-MoS2 show the conversion efficiencies above 19%. We also study various window layer materials to optimize the performance of the hetero-junction structure. The analysis includes the device stability as well operating temperature. The analyzed results indicate the feasible fabrication of high efficiency MoS2 based solar cells.