V. K. Nagareddy

TL;DR: Three novel routes for the chemical functionalization of graphene using oxygen, iron chloride and fluorine are described and novel in situ methods for controlling and patterning such functionalization on the micro- and nanoscales are introduced.

TL;DR: In this paper, the authors demonstrate that the chemical sensing mechanism in epitaxial graphene is based on fluctuations of the charge carrier density induced by vapor molecules adsorbed on the surface of the graphene.

TL;DR: Oxygen functionalized epitaxial graphene (OFEG) sensors are demonstrated toward the sensing of polar chemical vapors at room temperature as discussed by the authors, showing an increase in resistance upon exposure to polar protic chemicals while the resistance decreased for polar aprotic vapors.

TL;DR: Oxygen functionalised epitaxial graphene (OFEG) chemiresistor sensors were fabricated for sensing polar organic analyte vapours in the ambient atmosphere as discussed by the authors, where the electrical characteristics of the sensor showed an increase in resistance to polar protic analytes, whilst the resistance decreased upon exposure to polar aprotic vapours.