Accession Number:

ADA501639

Title:

Fabrication of Nanolaminates with Ultrathin Nanolayers Using Atomic Layer Deposition: Nucleation & Growth Issues

Descriptive Note:

Final technical rept. 6 Jan 2006-30 Nov 2008

Corporate Author:

COLORADO UNIV AT BOULDER DEPT OF CHEMISTRY AND BIOCHEMISTRY

Personal Author(s):

Report Date:

2009-02-01

Pagination or Media Count:

36.0

Abstract:

This AFOSR grant concentrated on the fabrication of nanolaminates with ultrathin nanolayers using atomic layer deposition ALD and molecular layer deposition MLD techniques. Nanolaminates are multilayered thin film structures with nanometer dimensions and very high interfacial density. These multilayer structures can display novel properties that can be optimized by manipulating the thickness and composition of the individual nanolayers. During this grant, the research examined nucleation and growth issues involved in the fabrication of WAl203 nanolaminates. These studies are important because WAl203 nanolaminates are important for thermal barrier coatings and x-ray mirrors. Subsequent studies examined Si02Al203 nanolaminates for gas diffusion barriers on polymers. The brittleness of these Si02Al203 nanolaminates motivated new work on molecular layer deposition MLD to develop flexible nanolaminate films using polymeric interlayers. New MLD growth methods were used to fabricate organic-inorganic nanolaminates that may serve as excellent flexible coatings.

Subject Categories:

  • Physical Chemistry
  • Electrical and Electronic Equipment
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE