Abstract

An optical and electrical investigation has been conducted for CH3NH3PbI2Clx based organic-inorganic halide thin-film perovskite solar cells for smooth and pyramid textured surfaces. A reference structure of perovskite solar cell has been reproduced for short-circuit current density and external quantum efficiency and further used in designing pyramid textured solar cell. The actual investigation was done by varying the period and height of the pyramid for better light trapping and enhancing effective thickness of the cell which is quite new for this type of emerging material solar cell. The complete study was carried on theoretically using a commercial Finite Difference Time Domain (FDTD) mathematical simulation tool where Maxwell#x2019;s curl equations are rigorously solved. An optimized perovskite solar cell has been designed and developed for 600 nm of period and 300 nm of height, exhibiting maximum of 19.15% conversion efficiency and 23.61 mA/cm2short-circuit current density, compared to 18.27% and 22.53 mA/cm2 conversion efficiency and short circuit current, respectively in smooth substrate solar cell.