Figure 2
From: Unidirectional motion of C60-based nanovehicles using hybrid substrates with temperature gradient
Potential energy as a function of the object's center of mass vertical distance from the substrate for (a) nanocar, (b) nanotruck, and (c) C60. The attractions between all objects and the pure boron-nitride substrate are stronger than those between objects and the pure graphene substrate. (d) Schematic representation of the setup considered for evaluation of potential energy when objects pass from pure boron-nitride substrate to pure graphene substrate. The coordinate system is illustrated in the figure. (e) The LJ potential energy captured when objects are passed from boron-nitride to graphene.
