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arXiv · 1410.6439

Graphoepitaxy for Pattern Multiplication of Nanoparticle Monolayers

Mark E. Ferraro·Roger T. Bonnecaze·Thomas M. Truskett
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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.

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Mark E. Ferraro, Roger T. Bonnecaze, Thomas M. Truskett. 2014-10-23. Graphoepitaxy for Pattern Multiplication of Nanoparticle Monolayers. https://doi.org/10.1103/physrevlett.113.085503

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