Bandgap engineering of the perovskite materials for solar cell applications

Abstract: 

Nowadays, Perovskite materials are frequently used in the application of solar cells. We are using organic-inorganic halide like CH3NH3PbI3, CH3NH3PbCl3 and CH3NH3PbBr3 in which CH3NH3 is organic part, Pb is the inorganic part and I, Cl, Br is the halide atom. Perovskite solar cells, which are widely employed in energy harvesting materials for applications in solar cell, are one of the types of solar cells that I have worked on recently. From 3.8% in 2009 to 23% in 2020, perovskite solar cells’ power conversion efficiency has grown significantly. I became interested in perovskite solar cells because of its high efficiency, long diffusion length, high photon absorption capacity, high mobility, low cost, and simple production procedure. High power conversion efficiencies have been successfully achieved through the investigation of photovoltaic systems in conjunction with tandem sun cells. However, this intriguing idea has not been sufficiently implemented in perovskite solar cells. The viability of employing perovskite semiconductors with varying bandgaps in conjunction with standard crystalline silicon for tandem concentric solar cell applications is evaluated in this paper. We assess the tandem perovskite concentrator solar cells’ device performance. 

Keywords: perovskite, diffusion length, band gap, efficiency.