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. 2017 Aug 28;114(37):9809–9813. doi: 10.1073/pnas.1708336114

Fig. S4.

Fig. S4.

Photocurrent density vs. time experiments over 10-s dark–light cycles with SnO2/TiO2 films of different TiO2 shell thicknesses and no added Ag NPs. The current−time traces are for (black) FTO|SnO2/TiO2(3 nm)|–RuP2+/WOC, (red) FTO|SnO2/TiO2(4.5 nm)|–RuP2+/WOC, (blue) FTO|SnO2/TiO2(6 nm)|–RuP2+/WOC at an applied bias of 0.2 V vs. Ag/AgCl in 0.1 M HAC/Ac buffer at pH 4.65 in 0.4 M NaClO4. The illumination intensity was 100 mW cm−2 generated by a white-light source with a 400-nm cutoff filter.