The interactions between nanoparticles in high-temperature vapor-synthesis environments have important implications on their self-assembly into specific structures. We apply classical molecular-dynamics (MD) simulations, with the interatomic potential, to study the interaction forces and the resulting dynamics between pairs of co-oriented and counter-oriented charge-neutral TiO₂ anatase nanoparticles in vacuum.

Publication: Zhang YY, Li SQ*, Yan W, Yao Q, Stepher DT. Role of dipole–dipole interaction on enhancing Brownian coagulation of charge-neutral nanoparticles in the free molecular regime. The Journal of chemical physics, 134(8): 084501 (2011).