Solving the Controversy on the Wetting Transparency of Graphene.

ABSTRACT: Since its discovery, the wetting transparency of graphene, the transmission of the substrate wetting property over graphene coating, has gained significant attention due to its versatility for potential applications. Yet, there have been debates on the interpretation and validity of the wetting transparency. Here, we present a theory taking two previously disregarded factors into account and elucidate the origin of the partial wetting transparency. We show that the liquid bulk modulus is crucial to accurately calculate the van der Waals interactions between the liquid and the surface, and that various wetting states on rough surfaces must be considered to understand a wide range of contact angle measurements that cannot be fitted with a theory considering the flat surface. In addition, we

SUBMITTER: Kim D 

PROVIDER: S-EPMC4620452 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature