Photochemical reactivity of graphene.
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.
Liu
Haitao
H
Department of Chemistry and Columbia University Center for Electronics of Molecular Nanostructures, Columbia University, 3000 Broadway, New York, New York 10027, USA.
Ryu
Sunmin
S
Chen
Zheyuan
Z
Steigerwald
Michael L
ML
Nuckolls
Colin
C
Brus
Louis E
LE