Figure 5: Specific capacitance (CS) calculated from the CV measurements.

(a) CS as a function of scan rate. (b) CS and capacity retention (%) as a function of cycle number of the copper oxide electrode films at a scan rate of 100 mV/s.
(a) CS as a function of scan rate. (b) CS and capacity retention (%) as a function of cycle number of the copper oxide electrode films at a scan rate of 100 mV/s.