Figure 6.

SEM images of ZnO nanostructures obtained from 0.1 M Zn(NO3)2·6H2O mixed with a 0.05 M, b 0.01 M, and c 0.001 M KCl, and d without KCl on ITO–glass at 70°C

Pradhan et al. Nanoscale Research Letters 2010 5:1727-1736   doi:10.1007/s11671-010-9702-2