The main sources of graphene damage at transfer from copper to PET/EVA polymer

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Abstract

The defects formed at transfer of graphene layers from a copper substrate using a PET/EVA thermoplastic were analyzed. It is shown that the damages of graphene layer occur at the stage of thermal sintering of samples and mechanical separation of copper. A method for stabilizing the copper foil and polymer substrate, which makes it possible to minimize the mechanical defects at sample separation, is proposed. The transfer process for the PET/EVA system was optimized by the sintering temperature. The PET/EVA-graphene composites with the resistance of 1.5–8 kΩ/□ were obtained using single-layer and few-layer CVD graphene at transfer.

Original languageEnglish
Pages (from-to)67-73
Number of pages7
JournalMaterials Chemistry and Physics
Volume219
DOIs
Publication statusPublished - 1 Nov 2018

Keywords

  • CVD
  • Graphene
  • PET/EVA
  • PMMA
  • Polymer
  • Transfer
  • LAYER GRAPHENE
  • FILMS
  • SINGLE
  • CVD-GROWN GRAPHENE
  • HIGH-QUALITY

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