Back to Search
Start Over
Self-organization of nano-lines and dots triggered by a local mechanical stimulus.
- Source :
-
Proceedings of the National Academy of Sciences of the United States of America . 11/21/2006, Vol. 103 Issue 47, p17650-17654. 5p. 4 Diagrams, 1 Graph. - Publication Year :
- 2006
-
Abstract
- When a local mechanical perturbation is applied to the surface of a thin film of a mechanically interlocked molecule (a rotaxane), the molecules self-organize into periodic arrays of discrete dots or lines. The dimensionality of the nanostructures depends on whether the mechanical stimulus acts along a 1D line or over a 2D area. The size (50–500 nm) and periodicity (100–600 nm) of the patterns are controlled solely by the film thickness. This self- organization at the mesoscopic scale occurs via a nucleation-ripening mechanism eased by the relatively low energy barriers of the intramolecular rearrangement introduced by the mechanical bond. The phenomenon can be exploited as a bottom-up nano-fabrication method. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00278424
- Volume :
- 103
- Issue :
- 47
- Database :
- Academic Search Index
- Journal :
- Proceedings of the National Academy of Sciences of the United States of America
- Publication Type :
- Academic Journal
- Accession number :
- 23406654
- Full Text :
- https://doi.org/10.1073/pnas.0605192103