Figure 3From: A versatile chemical conversion synthesis of Cu2S nanotubes and the photovoltaic activities for dye-sensitized solar cellTEM and HRTEM images and SAED pattern of the Cu 2 S nanotubes. TEM images of the Cu2S nanotubes with different reaction times: (a) 10 min, (b) 20 min, (c) 40 min, and (d) 1 h. (e) HRTEM image of the Cu2S-1 h nanotubes, together with the corresponding SAED pattern shown in the inset.Back to article page