Fig. 4: Electrochemical analysis of GPE ionic diode.
From: Ion rectification based on gel polymer electrolyte ionic diode

a CV plots for PAZT/PHEC scanned from –2 V to + 2 V at various scan rates; b Nyquist plots for PHEC/PHEC, PAZT/PAZT and PHEC/PAZT; c Nyquist plot of PAZT/PHEC heterojunction measured under dc biases; d Bode phase plot of PAZT/PHEC heterojunction measured under dc biases.