Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 71, Issue 3, Pages 365-372Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2010.12.003
Keywords
Flexible composites; Layered structures; Delamination; Fracture; Permeation barriers
Categories
Funding
- National Science Foundation [0856540, 0928278]
- Minta Martin Foundation
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [0856540, 0928278] Funding Source: National Science Foundation
Ask authors/readers for more resources
Organic-inorganic multilayer permeation barriers are emerging as a promising solution to the stringent barrier requirement of flexible electronics. Yet the mechanical failure of the multilayer permeation barriers could be fatal to their barrier performance. We study two co-evolving failure mechanisms of the multilayer permeation barriers under tension, namely, the cracking of the inorganic oxide layer and the delamination along the oxide-organic interface, using computational modeling. An effective driving force for the oxide layer cracking is determined, which decreases as the oxide-organic interfacial adhesion increases. Emerging from the study is a simple but effective design to enhance the deformability of multilayer permeation barriers by applying a thin protective coating. Further studies show that strong adhesion of the coating-oxide interface is crucial for the coating performance. The results from this study provide quantitative guidance for the material selection and structural optimization of organic-inorganic multilayer permeation barriers of high mechanical durability. (C) 2010 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available