title: High-contrast visualization of graphene oxide on dye-sensitized glass, quartz, and silicon by fluorescence quenching.
abstract: We present a novel approach for detecting and visualizing graphene oxide (GO) with high contrast on different substrates, including glass, quartz, and silicon. Visualization of GO sheets is accomplished through quenching the fluorescence of a thiophene dye, giving high optical contrast without the need to use interference methods. A comparison of fluorescence, AFM, and XRD measurements confirmed that even a single GO sheet can completely quench the fluorescence and thus be quickly visualized.
authors.affiliation: ISOF-CNR, via Gobetti 101, 40129 Bologna, Italy.
authors.forename: Emanuele
authors.initials: E
authors.lastname: Treossi
authors.forename: Manuela
authors.initials: M
authors.lastname: Melucci
authors.forename: Andrea
authors.initials: A
authors.lastname: Liscio
authors.forename: Massimo
authors.initials: M
authors.lastname: Gazzano
authors.forename: Paolo
authors.initials: P
authors.lastname: Samorì
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Palermo