A highly efficient synthetic process of graphene films with tunable optical properties

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Abstract

The paper reports an effective LB-based process to produce graphene oxide (GO). Uniform and controlled graphene oxide (GO) films were deposited on substrates by a simple and high-efficient Langmuir-Blodgett (LB)-based method. The influence of thermal reduction on GO films was systematically characterized and the annealing temperature of 800 °C was considered the most effective for reduction of GO. The optical and electrical properties were investigated for different reduced GO films to obtain the excellent sheet resistances of 440-620 Ω/sq with 60-70% range of light transparencies. A tunable surface wettability of GO films was found after heat treatment.

Original languageEnglish
Pages (from-to)71-77
Number of pages7
JournalApplied Surface Science
Volume314
DOIs
StatePublished - 30 Sep 2014

Keywords

  • Graphene oxide films
  • Langmuir-Blodgett method
  • Optical properties
  • Thermal reduction

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