(810a) Breakdown in the Wetting Transparency of Graphene

Authors: 
Shih, C. J., Massachusetts Institute of Technology
Wang, Q. H., Massachusetts Institute of Technology
Lin, S., Massachusetts Institute of Technology
Park, K. C., Massachusetts Institute of Technology
Strano, M., Massachusetts Institute of Technology
Blankschtein, D., Massachusetts Institute of Technology



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."