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. Author manuscript; available in PMC: 2018 Aug 19.
Published in final edited form as: Nat Nanotechnol. 2018 Feb 19;13(3):260–266. doi: 10.1038/s41565-017-0041-7

Figure 2. Single nanowire recordings reveal that coaxial Si nanowires are photoelectrochemical current sources.

Figure 2

(a) Schematic of photocurrent measurement setup. Vp represents the pipette voltage; Rfeedback is the resistance of a feedback resistor; Vout denotes the output voltage. (b) Photocurrent traces from a single PIN-SiNW illuminated with a 532 nm laser at 17 mW for durations of 0.5 ms (orange), 2 ms (green), or 10 ms (blue). (c) Photocurrent traces from a single PIN-SiNW illuminated with a 532 nm laser at 8.5 mW (blue), 3.4 mW (green), or 1.7 mW (orange) for a duration of 10 ms. The traces in (b) and (c) are representative ones from a total of 40 current traces measured from 5 independent PIN-SiNWs.