Three dimensional array films
AssigneeCommonwealth Scientific and Industrial Research Organisation
InventorsBurkhard Raguse, Vijoleta Lucija Bronislava Braach-Maksvytis
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Abstract
The present invention provides nanoparticle film and methods of making such films. The nanoparticle film comprises a three dimensional cross-linked array of nanoparticles and linker molecules. The nanoparticle film is coherent, robust and self supporting. The film may be produced by adding linker molecules to a suspension of nanoparticles. The linker molecules form cross-links between the nanoparticles. Prior to completion of the cross-linking reaction the cross-linked nanoparticles are separated from the suspension.
Claims38
A method of forming a coherent nanoparticle film, the method comprising the following steps:
- (i) adding to a suspension of nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction;
- and
- (ii) separating the cross-linked nanoparticles from the suspension prior to completion of the cross-linking reaction to obtain a coherent nanoparticle film.
A method of forming a multilayer film comprising at least two layers of coherent nanoparticle film, the method comprising the following steps:
- (i) adding to a suspension of nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction;
- (ii) passing the suspension from step (i) through a porous support prior to completion of the cross-linking reaction to form a nanoparticle film on the porous support;
- (iii) adding to a further suspension comprising nanoparticles linker molecules which form cross-links between the nanoparticles to start a cross-linking reaction;
- (iv) passing the further suspension from step (iii) through the nanoparticle film of step (ii) and the porous support prior to completion of the cross-linking reaction to form a further nanoparticle film;
- and
- (v) optionally repeating steps (iii) and (iv).
A nanoparticle film comprising a three dimensional cross-linked array of nanoparticles and linker molecules in which the nanoparticle film is coherent, robust and self supporting.
Dependencies are inferred from the claim text.