Fig. 4: PEC performance of CsPbBr3 photoanodes with GC/Ni/NiFeOOH protective catalytic sheet. | Nature Communications

Fig. 4: PEC performance of CsPbBr3 photoanodes with GC/Ni/NiFeOOH protective catalytic sheet.

From: Ultrastable halide perovskite CsPbBr3 photoanodes achieved with electrocatalytic glassy-carbon and boron-doped diamond sheets

Fig. 4

a LSV polarization scan (50 mV s−1 scan rate) under 1 sun illumination (solid line) and in dark (dashed green line). b IPCE spectrum at +1.23 VRHE. c OER Faradaic efficiency calculated from the experimental O2 amount and the theoretical O2 amount based on the measured photocurrent. d Photocurrent stability measurement at +1.23 VRHE under 1 sun illumination. Inset: SEM micrographs of Ni/NiFeOOH nanopyramid structure before and after the stability measurement and values of photocurrents at different times. Electrolyte: 1 M NaOH (pH 14).

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