Table 1: The average diameter, length, and aspect ratio (length/diameter) of ZnO nanorods on flexible ITO/PET substrates under different solution concentrations.

Solution con. (mM/L)5037.52518.7512.5
Average diameter (nm)397.4265.8251.1225173.6
Average length (nm)1200950830750600
Aspect ratio (Len./Dia.)3.023.573.313.333.46