title: Heterogeneous Fluorescence Intermittency in Single Layer Reduced Graphene Oxide.
abstract: We provide, for the first time, direct experimental evidence for heterogeneous blinking in reduced graphene oxide (rGO) during photolysis. The spatially resolved intermittency originates from regions within individual rGO sheets and shows 1/f-like power spectral density. We describe the evolution of rGO blinking using the multiple recombination center (MRC) model that captures common features of nanoscale blinking. Our results illustrate the universal nature of blinking and suggest a common microscopic origin for the effect.
authors.affiliation: †Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Jixin
authors.initials: J
authors.lastname: Si
authors.affiliation: §Noyes Laboratory of Chemical Physics, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States.
authors.forename: Sándor
authors.initials: S
authors.lastname: Volkán-Kacsó
authors.affiliation: ‡Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Eltom
authors.affiliation: ‡Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Yurii
authors.initials: Y
authors.lastname: Morozov
authors.affiliation: ‡Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Matthew P
authors.initials: MP
authors.lastname: McDonald
authors.affiliation: ‡Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Masaru
authors.initials: M
authors.lastname: Kuno
authors.affiliation: †Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, United States.
authors.forename: Boldizsár
authors.initials: B
authors.lastname: Jankó
keywords: MRC model; fluorescence intermittency; graphene oxide; heterogeneity