Piezoelectric and Dielectric Characterization of MWCNT-Based Nanocomposite Flexible Films

Table 4

Overview of the size range of surface modified MWCNT clusters as a function of treatment time and volume fraction in the piezoelectric thick film.

Ultrasonication time	Volume fraction of MWCNTs	Associated SEM figure	Size range of MWCNT cluster
30 minutes	0.03	Figure 4(a)	50 μm
	0.06	Figure 4(b)	60 μm
	0.09	Figure 4(c)	65 μm
2 hours	0.03	Figure 5(a)	15 μm
	0.06	Figure 5(b)	16.7 μm
	0.09	Figure 5(c)	17.5 μm
	0.03	Figure 6(a)	1.25 μm
3 hours	0.06	Figure 6(b)	1.36 μm
	0.09	Figure 6(c)	1.44 μm
	0.03	Figure 7(a)	326 nm
4 hours	0.06	Figure 7(b)	340 nm
	0.09	Figure 7(c)	345 nm
	0.03	Figure 8(a)	331 nm
8 hours	0.06	Figure 8(b)	338 nm
	0.09	Figure 8(c)	347 nm