Modeling of quadruple junction solar cell

Modeling involves realizing the mathematical model and extracting the parameters of a quadruple junction solar cell (which have obtained highest efficiencies according to the 2016 NREL efficiency data) like series and parallel resistances, ideality factor (ηi) etc using Genetic algorithm and modeling of the same in the MATLAB/SIMULINK environment using the different single junction solar cell models available and determining the efficiencies of each of the subcells. In this paper a four junction cell made of AlGaInP-GaAs-GaInAs-Ge which constitute the subcells of the Quad cell in the descending order of their bandgaps respectively, are modeled in Simulin