Figure 6: (A) Cyclic voltammogram of (i) PANI/ITO and (ii) PANI-(CdS-QD)/ITO electrode; (B & C) CV of PANI/ITO electrode and PANI-(CdS-QD)/ITO electrode in PBS buffer at the scan rate from 40 mVs-1 to 110 mVs-1. Inset of fig 6 (B & C) shows the variation of anodic peak current with respect to the square root of scan rate; (D) Electrochemical impedance spectra of (i) PANI/ITO (ii) PANI-(CdS-QD)/ITO electrode in PBS (50 mM, pH 7.0, 0.9% NaCl) solution.