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Fabrication of multilayered thin films via spin-assembly

United States Patent

7,179,679
February 20, 2007
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
An process of forming multilayer thin film heterostructures is disclosed and includes applying a solution including a first water-soluble polymer from the group of polyanionic species, polycationic species and uncharged polymer species onto a substrate to form a first coating layer on the substrate, drying the first coating layer on the substrate, applying a solution including a second water-soluble polymer from the group of polyanionic species, polycationic species and uncharged polymer species onto the substrate having the first coating layer to form a second coating layer on the first coating layer wherein the second water-soluble polymer is of a different material than the first water-soluble polymer, and drying the second coating layer on the first coating layer so as to form a bilayer structure on the substrate. Optionally, one or more additional applying and drying sequences can be repeated with a water-soluble polymer from the group of polyanionic species, polycationic species and uncharged polymer species, so that a predetermined plurality of layers are built up upon the substrate.
Chiarelli; Peter A. (Scottsdale, AZ), Robinson; Jeanne M. (Los Alamos, NM), Casson; Joanna L. (Los Alamos, NM), Johal; Malkiat S. (Bradenton, FL), Wang; Hsing-Lin (Los Alamos, NM)
The Regents of the University of California (Los Alamos, NM)
10/ 618,517
20040086649
July 11, 2003
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. W-7405-ENG-36 awarded by the U.S. Department of Energy. The government has certain rights in the invention.