“…The solar cell is a compulsory requirement for obtaining efficient, affluent, highly proficient, and low-cost electrical energy converted from sunlight [ [1] , [2] , [3] ]. At present, Copper Indium Gallium di-Selenide (CIGS) based thin-film solar cell (TFSC) is demanding due to cost-effectiveness and high-power conversion efficiency in the world energy society.…”