Dresden 2006 – scientific programme
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SYSS: Structure Formation and Self-Organization in non-equilibrium Systems
SYSS 3: Structure Formation and Self-Organization in non-equilibrium Systems - Poster
SYSS 3.1: Poster
Thursday, March 30, 2006, 16:00–18:00, P1
Monte Carlo modelling of layers of evaporating nanoparticle suspensions: Rupture patterns and front instabilities — •Ioan Vancea1, Christopher P. Martin2, Matthew O. Blunt2, Philip Moriarty2, and Uwe Thiele1 — 1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Str. 38, D-01187 Dresden, Germany — 2School of Physics & Astronomy, The University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
A Monte Carlo model introduced by Rabani et al. [1] has previously been shown to simulate accurately many of the characteristics of colloidal nanoparticle monolayers deposited via evaporation from a solvent [1,2]. We have used variants of the model put forward in Ref. 1 to investigate systematically the interdependence of evaporative dewetting of the liquid and demixing of liquid and particles. Spinodal dewetting and heterogenous nucleation are analysed in their dependence on the concentration of the nanoparticles. A second focus lies on the study of the transversal instability of a straight dewetting front.
[1] E. Rabani et al., Nature 426, 271-274 (2003).
[2] C. P. Martin et al., Nano Lett. 4, 2389-2392 (2004).