Synthesis of Colloidal ZnO Nanoparticles and Deposit of Thin Films by Spin Coating Technique
Figure 5
Pictures of the colloidal solution (a) first day, (b) second day, (c) 12 days, and (d) 24 days (the essay tubes from the left side start the sol as it is obtained, one wash, two washes, and finally three washes).
