title: Photochemical reactivity of graphene.
abstract: We demonstrate a photochemical reaction between graphene and benzoyl peroxide. This reaction introduces spatially localized defects into the graphene basal plane. The reactivity of the single-layer graphene is approximately 14 times higher than that of the double-layer graphene. Our result suggests that photoexcited graphene transfers a hot electron to benzoyl peroxide and induces its decomposition to a phenyl radical.
authors.affiliation: Department of Chemistry and Columbia University Center for Electronics of Molecular Nanostructures, Columbia University, 3000 Broadway, New York, New York 10027, USA.
authors.forename: Haitao
authors.initials: H
authors.lastname: Liu
authors.forename: Sunmin
authors.initials: S
authors.lastname: Ryu
authors.forename: Zheyuan
authors.initials: Z
authors.lastname: Chen
authors.forename: Michael L
authors.initials: ML
authors.lastname: Steigerwald
authors.forename: Colin
authors.initials: C
authors.lastname: Nuckolls
authors.forename: Louis E
authors.initials: LE
authors.lastname: Brus