A triple-junction solar cell with a metal grating back reflector is accurately simulated using JCMsuite's finite-element solver. Based on the simulations the parameters of the metal grating are optimized with JCMsuite's Analysis and Optimization Toolkit to maximize the efficiency of the solar cell.
P. Tillmann, et al. Optimizing metal grating back reflectors for III-V-on-silicon multijunction solar cells. Opt. Express 29, 22517 (2021).
DOI: 10.1364/OE.426761