Figure 4From: A simple route to vertical array of quasi-1D ZnO nanofilms on FTO surfaces: 1D-crystal growth of nanoseeds under ammonia-assisted hydrolysis process FESEM and cross-section images of ZnO quasi-NRs. Prepared in three different Zn(CH3COO)2, namely (A) 10, (B) 20 and (C) 30 mM with ammonia concentration was fixed at 36 mM. (D) is a typical cross-section image for the sample (C). Scale bar is 100 nm.Back to article page