We show the spontaneous fabrication of organized structures with multiple lengthscales from a solution of rotaxanes cast onto a holey mesh in contact with a substrate. The mesh controls the spatial distribution of deposited material on a micrometer scale. The borders around a hole in the mesh pin the solution, and dewetting within the hole generates droplets of rotaxane with nanometer length scale. The droplet size is controlled by the radial concentration profile.
Spontaneous Fabrication of Microscopic Arrays of Rotaxane Structures with Sub-Micrometer Lengthscales
Cavallini M;
2002
Abstract
We show the spontaneous fabrication of organized structures with multiple lengthscales from a solution of rotaxanes cast onto a holey mesh in contact with a substrate. The mesh controls the spatial distribution of deposited material on a micrometer scale. The borders around a hole in the mesh pin the solution, and dewetting within the hole generates droplets of rotaxane with nanometer length scale. The droplet size is controlled by the radial concentration profile.File in questo prodotto:
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