Fig. 4

a EIS Nyquist plots of S1–S5 NW sample-based electrodes with a frequency range of 0.1 Hz to 100 KHz and b Mott−Schottky plots of the S1–S5 NW samples at 1 KHz
a EIS Nyquist plots of S1–S5 NW sample-based electrodes with a frequency range of 0.1 Hz to 100 KHz and b Mott−Schottky plots of the S1–S5 NW samples at 1 KHz