title: Breakdown in the wetting transparency of graphene.
abstract: 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."
authors.affiliation: Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors.forename: Chih-Jen
authors.initials: CJ
authors.lastname: Shih
authors.forename: Qing Hua
authors.initials: QH
authors.lastname: Wang
authors.forename: Shangchao
authors.initials: S
authors.lastname: Lin
authors.forename: Kyoo-Chul
authors.initials: KC
authors.lastname: Park
authors.forename: Zhong
authors.initials: Z
authors.lastname: Jin
authors.forename: Michael S
authors.initials: MS
authors.lastname: Strano
authors.forename: Daniel
authors.initials: D
authors.lastname: Blankschtein