The self-assembly of ink molecules in dip-pen nanolithography (DPN) was theoretically studied for the first time. The dynamics of the self-assembly was modeled as a two dimensional random walk on a square lattice. Varying the magnitudes of deposition rate and tip scan speed relative to the diffusion time scale of ink molecules, the patterns generated by DPN were determined.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics