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Nanoparticle assembly by confinement in wrinkles: Experiment and simulations

Schweikart, A, Fortini, A, Wittemann, A, Schmidt, M and Fery, A (2010) Nanoparticle assembly by confinement in wrinkles: Experiment and simulations Soft Matter, 6 (23). pp. 5860-5863.

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We created hierarchically ordered structures of nanoparticles on smooth planar hydrophilic substrates by drying colloidal dispersions in confinement under macroscopic stamps with microscopically wrinkled surfaces. Experiments were carried out with model nanoparticle suspensions that possess high colloidal stability and monodispersity. The structures ranged from single parallel lines of particles to arrays of dense prismatic ridges. The type of observed structure could be controlled by the particle concentration in the initial dispersion. Confinement between two crossed stamps led to interconnected meshes of particles. The precise morphology could be predicted in all cases by Monte Carlo computer simulations of confined hard spheres. Our findings open up possibilities for versatile nanoparticle assembly on surfaces. © 2010 The Royal Society of Chemistry.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Schweikart, A
Wittemann, A
Schmidt, M
Fery, A
Date : 7 December 2010
DOI : 10.1039/c0sm00744g
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:17
Last Modified : 24 Jan 2020 23:44

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