Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8036694 | Thin Solid Films | 2013 | 10 Pages |
Abstract
We report systematic experimental and computational studies to analyze evaporative self-assembly of micro particles in printed picoliter suspension droplets. Evaporative self-assembly of micro particles in picoliter droplets is enabled by a droplet-printing system for small-scale particle suspension droplets. Experiments were performed to study the regime where particle interactive forces become comparable to hydrodynamic, evaporative forces of an evaporating droplet. A particle-based computational method was developed to calculate the particle-to-particle clustering time. In this study, we verify that there is a time-scale competition between particle-to-particle clustering and evaporation of the liquid medium that determines the final morphology of micro particle assemblies.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Sun Choi, Albert P. Pisano, Tarek I. Zohdi,