Growth of ZnO Nanorod Arrays on Flexible Substrates: Effect of Precursor Solution Concentration

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)	50	37.5	25	18.75	12.5
Average diameter (nm)	397.4	265.8	251.1	225	173.6
Average length (nm)	1200	950	830	750	600
Aspect ratio (Len./Dia.)	3.02	3.57	3.31	3.33	3.46