Research Article

Electrical Conductivity Studies of Polyaniline Nanotubes Doped with Different Sulfonic Acids

Figure 7

(a) curves at different temperatures, obtained by four-probe measurements, for TSA-PANI sample. The inset illustrates the sample contacts and the electrical measurement. (b) Conductivity of the three doped samples as a function of the temperature.
718304.fig.007a
(a)
718304.fig.007b
(b)