Figure 1From: Flexible, transparent electrodes using carbon nanotubesImpedance dependence on frequency Z ( f ) for films of different SWCNT densities corresponding to different colors. The highest impedance corresponds to the lowest density. We can define the cutoff frequency (f0), at which Z decreases abruptly: f0 increases when increasing the SWCNT density on the substrate, while resistance decreases, as does the low-frequency impedance.Back to article page