Realization of large-area wrinkle-free monolayer graphene films transferred to functional substrates.

ABSTRACT: Structural inhomogeneities, such as the wrinkles and ripples within a graphene film after transferring the free-standing graphene layer to a functional substrate, degrade the physical and electrical properties of the corresponding electronic devices. Here, we introduced titanium as a superior adhesion layer for fabricating wrinkle-free graphene films that is highly applicable to flexible and transparent electronic devices. The Ti layer does not influence the electronic performance of the functional substrates. Experimental and theoretical investigations confirm that the strong chemical interactions between Ti and any oxygen atoms unintentionally introduced on/within the graphene are responsible for forming the clean, defect-free graphene layer. Our results accelerate the practical applicat

SUBMITTER: Park BJ 

PROVIDER: S-EPMC4456724 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature