Graphoepitaxy for Pattern Multiplication of Nanoparticle Monolayers
arXiv:1410.6439 · doi:10.1103/PhysRevLett.113.085503
Abstract
We compute the free energy minimizing structures of particle monolayers in the presence of enthalpic barriers of a finite height \b{eta}Vext using classical density functional theory and Monte Carlo simulations. We show that a periodic square template with dimensions up to at least ten times the particle diameter disrupts the formation of the entropically favored hexagonally close-packed 2D lattice in favor of a square lattice. The results illustrate how graphoepitaxy can successfully order nanoparticulate films into desired patterns many times smaller than those of the prepatterned template.
References in corpus (5)
- Optimized Interactions for Targeted Self-Assembly: Application to Honeycomb Lattice
- Designed Interaction Potentials via Inverse Methods for Self-Assembly
- Inverse design of simple pairwise interactions with low-coordinated 3D lattice ground states
- Computing phase diagrams for a quasicrystal-forming patchy-particle system
- Block Copolymer Films with Free Interfaces: Ordering by Nano-Patterned Substrates