Tailoring of Energy Band Gap inGraphene-like System by Fluorination

  • Aparna V Nair Department of Physics & Electronics, CHRIST (Deemed to be University), Bengaluru, India
  • B Manoj Department of Physics & Electronics, CHRIST (Deemed to be University), Bengaluru, India
Keywords: Band Gap, Fluorographene, Graphene Oxide, nanococarbon

Abstract

Fluorinated grapheme has a two-dimensional layer structure with a wide band gap. In the present study, Fluoro Graphene (FG) is obtained from Graphene Oxide (GO) through a deoxyfluorination reaction with the aid of Diethylaminosulphurtrifluoride (DAST). The FT-IR exhibited a peak at 1216 cm-1 and the shoulder at 1312 cm-1 were ascribed to the stretching vibration of covalent C–F bonds and C–F2 bonds, respectively. Surface morphology revealed a leafy structure in GO and a rocky structure in FG. The EDS analysis confirmed the fluorination of the graphitic structure. The TEM analysis confirmed the formation of a mixed structure of graphene and carbon dots. The results of structural, morphological and electrical properties of both graphene oxide and fluorographene show the possibility of using these samples as electronic/electrochemical devices in future.

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Published
2019-01-01
Section
Research Articles