Fig. 1From: Reduced Graphene Oxide-Coated Si Nanowires for Highly Sensitive and Selective Detection of Indoor Formaldehydea Top view, b zoomed-in top view, and c cross-sectional SEM images of n-SiNWs. d Cross-sectional SEM image of p-SiNWs. e TEM image of n-SiNWs. f HRTEM image of n-SiNWs together with the corresponding FFT. g SEM image of RGO@n-SiNWs with HF treatment. h Zoomed-in SEM image of RGO@n-SiNWs with HF treatmentBack to article page