Figure 2
From: Aligned CuO nanowire array for a high performance visible light photodetector

Device demonstration. (a) 3D-schematics of the fabrication process. (b) Optical image of the fabricated device (left panel). The CuO nanowires are fabricated on the entire area on the substrate. The red dashed box is magnified in the right panel. (c) Top SEM image of the fabricated CuO nanowires. (d) The measured absorption data of the fabricated CuO nanowires (red solid line) and thin film CuO (black dashed line). (e) TEM HR mode of fabricated CuO nanowire (cross-sectional view). (f) Magnified TEM image of CuO NW (inset: Fourier transform pattern of single grain of CuO). (g) The measured XRD pattern of the fabricated CuO nanowire (upper panel) and reference diffraction lines of the monoclinic tenorite phase of CuO (JCPDS 00-241-0254) (lower panel).