Fig. 4From: Optimization of GaAs Nanowire Pin Junction Array Solar Cells by Using AlGaAs/GaAs Heterojunctionsa The vertical cross section of optical generation profiles in AlGaAs/GaAs nanowire axial pin heterojunction solar cells with different p-region lengths. b The conversion efficiency of GaAs and AlGaAs/GaAs nanowire axial solar cells as functions of p-region lengthBack to article page