Related Experiment Video
Updated: May 2, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
Published on: July 24, 2015
Vibrational Excitations and Low Energy Electronic Structure of Epoxide-decorated Graphene
E C Mattson1, J E Johns2, K Pande1
1University of Wisconsin-Milwaukee, Physics Dept., Milwaukee, WI 53211.
Abstract:
We report infrared studies of adsorbed atomic oxygen (epoxide functional groups) on graphene. Two different systems are used as a platform to explore these interactions, namely, epitaxial graphene/SiC(0001) functionalized with atomic oxygen (graphene epoxide, GE) and chemically reduced graphene oxide (RGO). In the case of the model GE system, IR reflectivity measurements show that epoxide groups distort the graphene π bands around the K-point, imparting a finite effective mass and contributing to a band gap. In the case of RGO, epoxide groups are found to be present following the reduction treatment by a combination of polarized IR reflectance and transmittance measurements. Similar to the GE system, a band gap in the RGO sample is observed as well.
More Related Videos
Related Concept Videos
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals
π Electron Effects on Chemical Shift: Overview
Acid-Catalyzed Ring-Opening of Epoxides
IR and UV–Vis Spectroscopy of Aldehydes and Ketones
Photochemical Electrocyclic Reactions: Stereochemistry
Selection Rules: Photochemical Activation

