fig4
Figure 4. (A) PEC performance of WO3 electrodes. (B) UV-vis absorptance spectra of WO3 electrodes. (C) Charge transport efficiency and (D) charge transfer efficiency of WO3 electrodes. (E) EIS (Electrochemical Impedance Spectroscopy) measurement of the WO3 electrodes under 1 sun illumination (at 1.23 V vs. RHE, 106~0.01 Hz) and (F) Mott-Schottky plots of WO3 electrodes.
