Numerical simulation of MASnI₃/CuI heterojunction based perovskite solar cell

Abstract

The lead (Pb) free perovskite solar cells have gained much attention due to non-toxic nature. Owing to a smaller band gap of 1.3 eV, methylammonium tin iodide (III) (MASnI3) can be considered an alternate light absorber layer compare to the lead-based perovskites (MAPbClxI3-x). In this article, MASnI3 based perovskite solar cell has been studied using a 1-D SCAPS simulator. The solar cell structure ITO/TiO2/MASnI3/CuI is simulated in superstrate configuration which achieves a photovoltaic efficiency less than 8 %. Photovoltaic efficiency of the solar cell is further improved to 17.93 % by optimizing thickness and total defect density of the absorber layer. Moreover, the role of defects at the interfaces: TiO2/MASnI3 and MASnI3/CuI on the solar cell performance is also analyzed.

Solar power conversion: CuI hole transport layer and Ba3NCl3 absorber enable advanced solar cell technology boosting efficiency over 30%

“…26,27 The goal of the research is to create an HTL material, such as CuI, with improved electrical and optical properties. 28 Thus far, the only reports of improved PV performance have been of combined high-efficiency Ba 3 NCl 3 absorber setups with Al/FTO/TiO 2 /Ba 3 NCl 3 /CuI/Ni design.…”