Preparation of functional composite materials based on chemically derived graphene using solution process

M. Kim, W. J. Hyun, S. C. Mun, O. O. Park

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

Chemically derived graphenes were assembled into functional composite materials using solution process from stable solvent dispersion. We have developed foldable electronic circuits on paper substrates using vacuum filtration of graphene nanoplates dispersion and a selective transfer process without need for special equipment. The electronic circuits on paper substrates revealed only a small change in conductance under various folding angles and maintained an electronic path after repetitive folding and unfolding. We also prepared flexible. binder-free graphene paper-like materials by addition of graphene oxide as a film stabilizer. This graphene papers showed outstanding electrical conductivity up to 26,000 S/m and high charge capacity as an anode in lithium-ion battery without any post-treatments. For last case, multi-functional thin film structures of graphene nanoplates were fabricated by using layer-by-layer assembly technique, showing optical transparency, electrical conductivity and enhanced gas barrier property.

Original languageEnglish (US)
Article number012027
JournalJournal of Physics: Conference Series
Volume602
Issue number1
DOIs
StatePublished - Apr 15 2015
Event1st International Conference on Rheology and Modeling of Materials, IC-RMM 2013 - Miskolc-Lillafured, Hungary
Duration: Oct 7 2013Oct 11 2013

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