342954 Breakdown in the Wetting Transparency of Graphene

Friday, November 8, 2013: 12:35 PM
Continental 1 (Hilton)
Chih-Jen Shih1, Qing Hua Wang1, Shangchao Lin2, Kyoo-Chul (Kenneth) Park3, Michael S. Strano1 and Daniel Blankschtein1, (1)Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, (2)Department of Chemical Engineering and Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, (3)Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA

We develop a theory to model the van der Waals interactions between liquid and graphene, including quantifying the wetting behavior of a graphene-coated surface. Molecular dynamics simulations and contact angle measurements were also carried out to test the theory. We show that graphene is only partially transparent to wetting and that the predicted highest attainable contact angle of water on a graphene-coated surface is 96. Our findings reveal a more complex picture of wetting on graphene than what has been reported recently as complete ''wetting transparency."

Extended Abstract: File Not Uploaded
See more of this Session: Graphene and Carbon Nanotubes: Absorption and Transport Processes
See more of this Group/Topical: Nanoscale Science and Engineering Forum