▎ 摘　　要

The wetting control of graphene is of great interest for electronic, mechanical, architectural, and bionic applications. In this study, the wettability of graphene-laminated micropillar structures was manipulated by changing the height of graphene-laminated structures and employing the trichlorosilane (HDF-S)-based self-assembly monolayer. Graphene-laminated micropillar structures with HDF-S exhibited higher hydrophobicity (contact angle of 129.5 degrees) than pristine graphene thin film (78.8 degrees), pristine graphene-laminated micropillar structures (97.5 degrees), and HDF-S self-assembled graphene thin film (98.5 degrees). Wetting states of the graphene-laminated micropillar structure with HDF-S was also examined by using a urea solution, which flowed across the surface without leaving any residues. (C) 2014 AIP Publishing LLC.