Wetting of solid islands on parallel nano-groovesO. Pierre-Louis1, 2 and Y. Saito3
1 Rudolf Peierls Center for Theoretical Physics, Oxford University - 1 Keble Road, OX1 3NP Oxford, UK, EU
2 Laboratoire de Spectrométrie Physique, Université Joseph Fourier and CNRS - 140 Avenue de la Physique, 38402 Saint Martin D'Hères, France, EU
3 Keio University - 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, Kanagawa, 223-8522 Japan
received 27 February 2009; accepted in final form 27 April 2009; published May 2009
published online 26 May 2009
We analyze the wetting behavior of a solid adsorbate island on a substrate with parallel grooves. The island is found in three main states, with different shapes and positions: a lifted Cassie-Baxter–like state, a collapsed Wenzel-like state, and a capillary filling state. The stability of these states is summarized in a two-loop–hysteresis diagram. Quantitative agreement is found between kinetic Monte Carlo simulations and a simple analytical model.
61.46.-w - Structure of nanoscale materials.
68.65.Hb - Quantum dots (patterned in quantum wells).
81.10.Aj - Theory and models of crystal growth; physics of crystal growth, crystal morphology, and orientation.
© EPLA 2009