Abstract
Evaporation of a liquid droplet containing a thin layer of surfactants atop could generate two-dimensional buckling on surfaces. Herringbone features were produced via embedded nanoparticle beds. We assign transient surface tension as the driving force for such a phenomenon. Considering the surfactant layer as a thin elastic film, a continuum model is employed to calculate the mechanical properties of the layer. Particularly, we estimated an elastic modulus of 4 GPa for the surfactant layer, indicating rather strong mechanical properties of these small molecules when they are close packed to form supramolecules via noncovalent binding.
| Original language | English (US) |
|---|---|
| Article number | 223104 |
| Journal | Applied Physics Letters |
| Volume | 95 |
| Issue number | 22 |
| DOIs | |
| State | Published - 2009 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Cite this
Chen, Z., Liu, M., Liu, G., & Tan, L. (2009). Evaporation induced two-dimensional buckling within liquid droplet. Applied Physics Letters, 95(22), [223104]. https://doi.org/10.1063/1.3269930