• 文献标题:   Plasma-enabled healing of graphene nano-platelets layer
  • 文献类型:   Article
  • 作  者:   FANG XQ, CORBELLA C, ZOLOTUKHIN DB, KEIDAR M
  • 作者关键词:   graphene platelet network, anodic arc discharge, plasma healing, scanning electron microscopy, raman spectroscopy
  • 出版物名称:   FRONTIERS OF CHEMICAL SCIENCE ENGINEERING
  • ISSN:   2095-0179 EI 2095-0187
  • 通讯作者地址:   George Washington Univ
  • 被引频次:   7
  • DOI:   10.1007/s11705-018-1787-7
  • 出版年:   2019

▎ 摘  要

Graphene platelet networks (GPNs) were deposited onto silicon substrates by means of anodic arc discharge ignited between two graphite electrodes. Substrate temperature and pressure of helium atmosphere were optimized for the production of the carbon nanomaterials. The samples were modified or destroyed with different methods to mimic typical environments responsible of severe surface degradation. The emulated conditions were performed by four surface treatments, namely thermal oxidation, substrate overheating, exposition to glow discharge, and metal coating due to arc plasma. In the next step, the samples were regenerated on the same substrates with identical deposition technique. Damaging and re-growth of GPN samples were systematically characterized by scanning electron microscopy and Raman spectroscopy. The full regeneration of the structural and morphological properties of the samples has proven that this healing method by arc plasma is adequate for restoring the functionality of 2D nanostructures exposed to harsh environments.