Figure 3

PEC measurements on ATO and ATO-H-10. (a) LSV curves of ATO-H-10 photoanode as a function of scan rates in 1 M KOH under simulated solar illumination. (b) LSV curves of pristine ATO and ATO-H-10 with a scan rate of 5 mV/s under simulated solar illumination. (c) IPCE spectra of pristine ATO and ATO-H-10 in the range of 300 to 700 nm at 0 V (vs Ag/AgCl). Inset: magnified IPCE spectra, highlighted in dashed box, at the incident wavelength range of 430 to 700 nm.