However, in the case of AC electric field, the electrophoretic mobility is zero, thus, the presence of CNTs disturbs the homogeneity in the electric field and the alignment occurs due to their dielectrophoretic behavior. Use of AC electric field was found to be more efficient in obtaining uniform and aligned networks [23]. The effect of varying AC electric field parameters on the alignment behavior of CNTs was studied to show that the degree of CNT alignment increased with associated coarsening of the CNT bundles with increase in field voltage [25]. Therefore, while increased voltages are beneficial for CNT alignment, they also promote CNT aggregation in the direction of electric field, indicating the need for optimizing the voltage level. It is also observed that the extent of CNT alignment increased with increase in frequency of the AC field.