Fig. 3
From: Interfacial oxygen vacancies yielding long-lived holes in hematite mesocrystal-based photoanodes
PEC performance. a Current density–voltage curves of Ti–Fe2O3 MC/Co–Pi, Ti–Fe2O3 MC, Fe2O3 MC, and Fe2O3 SC photoanodes prepared by 50 cycles of spin-coatings measured under back illumination with AM 1.5 G simulated sunlight in 1.0 M NaOH. b IPCE curves measured at 1.23 V vs. RHE for the Ti–Fe2O3 MC, Fe2O3 MC, and Fe2O3 SC photoanodes. c Gas evolved from Ti–Fe2O3 MC photoanode and Pt counter electrode with an applied potential of 1.23 V vs. RHE under back illumination during 3 h and the corresponding Faradaic efficiencies (FEs). d Current density–time curve of the Ti–Fe2O3 MC photoanode measured at 1.23 V vs RHE under back illumination. e Photograph showing gas evolution from Ti–Fe2O3 MC photoanode and Pt counter electrode under an applied potential of 1.23 V vs. RHE
