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Issue 12, 2007
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A lithography-free method for directed colloidal crystal assembly based on wrinkling

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Abstract

A simple, novel, and completely lithography-free assembly strategy is reported for directed colloidal crystal assembly on optically transparent substrates. The templates are stable, well-controlled relaxation-wrinkles of ultrathin multilayer films in a non-stretched state, which are fabricated by layer-by-layer self-assembly of polymeric films on soft elastomeric substrates followed by uniaxial plastic deformations. The results show that the wrinkles can be used efficiently to topographically direct colloidal crystal assembly in dip coating. Remarkably highly regular 1- and 2-dimensional patterned colloidal crystals with controlled structures have been obtained. Furthermore, the concept is rather universal and applicable to various particle types provided surface interactions between particles and template are suitable.

Graphical abstract: A lithography-free method for directed colloidal crystal assembly based on wrinkling

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Publication details

The article was received on 17 Aug 2007, accepted on 27 Sep 2007 and first published on 17 Oct 2007


Article type: Paper
DOI: 10.1039/B712706E
Citation: Soft Matter, 2007,3, 1530-1536

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    A lithography-free method for directed colloidal crystal assembly based on wrinkling

    C. Lu, H. Möhwald and A. Fery, Soft Matter, 2007, 3, 1530
    DOI: 10.1039/B712706E

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