Fig. 2From: Strained GaAs/InGaAs Core-Shell Nanowires for Photovoltaic Applications a Top view FE-SEM image of core-shell GaAs/InGaAs nanowires with ≈50-nm shell thickness. The inset shows the hexagonal morphology with {110} facets. b Side view of the same sample. c Close-up view illustrating small tapering effect of the core-shell nanowiresBack to article page