Performance analysis of multijunction solar cell

Abstract

Due to the limited amount of fossil fuel left on earth, there is a need to increase the number of alternatives we currently have; such alternatives include solar energy which is inexhaustible by humans. In this work, I have focused on multijunction solar cells as it is a better choice owing to the limiting efficiencies of conventional single-junction solar cells that are abundantly available to us currently. Our focus has been on firstly verifying the parameters with a reference research paper results of multi-junction solar cells, then predict the behavior of our proposed material based on our simulation’s prediction. The simulation has been performed on the simulation software called Silvaco TCAD. So, we have first verified the material characteristics of InGaN material based multi-junction solar cell array along with temperature varied from 220 kelvins to 380 kelvins. Parameters of our interest are the open circuit voltage, short circuit current, efficiency, and fill factor. The parameters are extracted from simulation results and then compared. On getting the expected result we then develop the same models for the multi-junction solar cells with different materials i.e. GaAs based and then we predict the behaviors for the material with a change in the temperature in the same range.