Fig. 2
From: Perfect proton selectivity in ion transport through two-dimensional crystals
Proton selectivity. a Examples of I–V characteristics for various HCl concentrations across a monolayer hBN membrane at a fixed ΔC = 10. The current at zero voltage (intersection with the y axis) was always positive. The reversal potential V0 is given by the intersection of the I–V curves with the x axis and was V0 ≈ − 58 mV as marked by the dotted line. b V0 for different ΔC and four different hBN devices (symbols of different color). Error bars, SD from different measurements. The black line is given by Eq. (1) for tH = 1 and tCl = 0. Inset: Schematic of the experimental setup
