Fig. 4. Results of molecular dynamics simulations for PC.

a Density profiles of liquid PC at different charge densities, 0, 1, 2 and 3 µC cm⁻² (The densities have been shifted vertically by 500 units for clarity). b Electrostatic potential drop for the same systems, as represented in the left panel; left and right electrodes are positively and negatively charged, respectively. c Variation of the voltage with the surface charge density. The straight line represents the linear fitting to the data. The computed capacitance for this system is 1.98 µF cm⁻².