ABSTRACT
Electrochemical impedance spectroscopy is very useful technique to understand the microstructure and related further electrical properties of conjugated polymers. The impedance of a modified electrode depends on the impedance of each of the bulk phases and on interfacial properties as well. In electrochemical impedance spectroscopy the cell is perturbed with a small time-varying potential wave-form. The complex impedance data involves the interplay of three variables, the imaginary component of the impedance, Zim, the real component of the impedance, Zreal, and the phase angle, j. Randles model are used to describe the frequency dependence of diffusion and the capacitive impedance observed in the intermediate and low frequency ranges. The electrical properties of the electrospun nanofibers were determined by electrochemical impedance measurements in a monomer-free solution.
