Interfacial convective assembly for high aspect ratio structures without surface treatment
First Claim
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1. A method for depositing colloidal particles onto a substrate comprising:
- (a) providing a substrate having a surface;
(b) depositing a first fluid onto the surface of the substrate to form a first layer;
(c) depositing an aqueous dispersion of colloidal particles as a second layer on top of the first layer to form a two-layered fluid system;
(d) optionally covering the second layer with a cover so as to form an assembly comprising a sandwich of the first and second layers between the substrate and the cover;
(e) removing the first layer; and
(f) removing water from the second layer, leaving a layer of colloidal particles on the surface of said substrate.
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Abstract
A method for assembling colloidal particles onto a substrate surface through fluid transport. The method comprises placing a first fluid placed adjacent to the substrate surface, applying a colloidal dispersion on top of the first fluid layer and removal of the first fluid layer. The method is extremely versatile, and is especially useful in depositing colloidal materials in high aspect ratio channels and vias without the need for prior treatment of the surface.
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Citations
53 Claims
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1. A method for depositing colloidal particles onto a substrate comprising:
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(a) providing a substrate having a surface; (b) depositing a first fluid onto the surface of the substrate to form a first layer; (c) depositing an aqueous dispersion of colloidal particles as a second layer on top of the first layer to form a two-layered fluid system; (d) optionally covering the second layer with a cover so as to form an assembly comprising a sandwich of the first and second layers between the substrate and the cover; (e) removing the first layer; and (f) removing water from the second layer, leaving a layer of colloidal particles on the surface of said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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- 20. The method of clam I wherein the substrate comprises patterned micro- or nano-dimensioned features.
Specification