Graphene-wrapped hybrid spheres of electrical conductivity

Sang Ah Ju, Kyunghee Kim, Jung Hyun Kim, Sang Soo Lee

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

We present a simple approach for the fabrication of monodisperse electroconductive hybrid spheres using graphene sheet-wrapping via ionic interaction-based self-assembly. The graphene sheets partially charged with anion, which were prepared by controlled chemical reduction of graphite oxide, were mixed with monodisperse polymer nanospheres containing cationic surface charge to form ionic self-assembled hybrid spheres of core-shell structure. The resulting graphene-wrapped hybrid spheres were found to have graphene layer thickness of ca. 10 nm and to exhibit electrical conductivity of 1.33-4.21 S/m as well as monodisperse distributions in shape and diameter.

Original languageEnglish
Pages (from-to)2904-2911
Number of pages8
JournalACS Applied Materials and Interfaces
Volume3
Issue number8
DOIs
Publication statusPublished - 2011 Aug 24

Keywords

  • charged grapheme
  • electroconductivity
  • hybrid spheres
  • ionic interaction

ASJC Scopus subject areas

  • Materials Science(all)

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