The effect of surface topography on the lunar photoelectron sheath and electrostatic dust transport

► We model the lunar photoelectron sheath with a particle-in-cell code. ► We include the presence of a crater in the sheath. ► The crater alters the plasma environment, leading to enhanced electric fields. ► We model electrostatic dust transport using the particle-in-cell results. ► We find that craters can effectively trap dust grains electrostatically.