Fig. 3From: Self-Etching-Induced Morphological Evolution of ZnO Microrods Grown on FTO Glass by Hydrothermal MethodLow and high magnificent 55° tilt-view FESEM images of ZnO microrods grown on FTO glass after 0- to 6-h retention. a, a' 0-h retention. b, b' 1-h retention. c, c' 2-h retention. d, d' 3-h retention. e, e' 4-h retention. f, f' 5-h retention. g, g' 6-h retentionBack to article page