Figure 4.

SEM images of nanostructures electrodeposited with a 0.001 M and b 0.0005 M Zn(NO3)2·6H2O (with 0.1 M KCl) on ITO–glass at 70°C for 120-min deposition time. The respective insets show lower-magnification images to illustrate the uniformity. c Shows a representative cross-sectional SEM image of nanowires obtained with 0.001 M Zn(NO3)2·6H2O for 60-min deposition time, and the inset shows sparsely grown nanowires directly on ITO–glass deposited for 30 min

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