Figure 8
The open-circuit potential (OCP) of various working electrodes during the on-off test under illumination. (a) The OCP plots of various working electrodes. (b-d) The enlarged OCP plots from (a) for Ag DNFs, Pt-Ag tDNFs, and S-Pt/Ag DNFs, respectively. Counter electrode: Pt-coated Ti mesh; reference electrode: saturated calomel electrode (SCE). The illumination was conducted under a solar simulator (SADHUDESIGN; class B; 400 to 1,000 nm; 1,000 W m−2).