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Hierarchical Buckling on Surfaces of Soft Laminae
- Source :
- The Journal of Physical Chemistry C. 114:16439-16442
- Publication Year :
- 2010
- Publisher :
- American Chemical Society (ACS), 2010.
-
Abstract
- Buckling in solid thin films supported by soft substrates has been well-studied. Many of those buckling features discovered, however, are monotonous without any hierarchical organizations. We report our finding of a substantial 2D hierarchical buckling atop a molecular type of multistacks or lamellae. This multistacked structure is a direct self-assembly from aminopropyltriethoxysilane, in which the polar amine groups promote the absorption of a large amount of water. We found that the resulting soft structures are good candidates to allow the formation of a complex buckling along the surface normal. Revealed cauliflower-like, hierarchical patterns are modeled by considering rigid columns standing on a soft substrate. In return, the hierarchical structures demonstrated could find applications in nanofabrication and enrich emerging fields, such as flexible electronics or optics.
Details
- ISSN :
- 19327455 and 19327447
- Volume :
- 114
- Database :
- OpenAIRE
- Journal :
- The Journal of Physical Chemistry C
- Accession number :
- edsair.doi...........1dddc4618b07f27eca04f48361f5dcb0