Figure 2From: A self-powered UV photodetector based on TiO2 nanorod arraysXRD pattern and SEM images of TiO 2 nanorod arrays. (a) X-ray diffraction pattern of the TiO2 nanorod array grown on FTO glass. (b) SEM image (40° tilted) of the TiO2 nanorod array grown on FTO glass by hydrothermal method. (c) A high-magnification top-view SEM image of TiO2 nanorod array.Back to article page