A computer analysis of Ga1-xAlxAs-GaAs solar cells with multilayered window structure

Numerical calculations have been made of the spectral response and conversion efficiency of Ga
1-x
Al
x
As-GaAs solar cells with multilayered window structures. Maximum conversion efficiencies of about 20 percent are predicted, equaling those achieved with graded band-gap solar cells, for the case of three-layered window structures.