Enhanced Electrical Networks of Stretchable Conductors with Small Fraction of Carbon Nanotube/Graphene Hybrid Fillers

ACS Applied Materials & Interfaces
Jae Young OhSoon Hyung Hong

Abstract

Carbon nanotubes (CNTs) and graphene are known to be good conductive fillers due to their favorable electrical properties and high aspect ratios and have been investigated for application as stretchable composite conductors. A stretchable conducting nanocomposite should have a small fraction of conductive filler material to maintain stretchability. Here we demonstrate enhanced electrical networks of nanocomposites via the use of a CNT-graphene hybrid system using a small mass fraction of conductive filler. The CNT-graphene hybrid system exhibits synergistic effects that prevent agglomeration of CNTs and graphene restacking and reduce contact resistance by formation of 1D(CNT)-2D(graphene) interconnection. These effects resulted in nanocomposite materials formed of multiwalled carbon nanotubes (MWCNTs), thermally reduced graphene (TRG), and polydimethylsiloxane (PDMS), which had a higher electrical conductivity compared with MWCNT/PDMS or TRG/PDMS nanocomposites until specific fraction that is sufficient to form electrical network among conductive fillers. These nanocomposite materials maintained their electrical conductivity when 60% strained.

References

Sep 28, 2007·Proceedings of the National Academy of Sciences of the United States of America·Hanqing JiangJohn A Rogers
Jul 26, 2008·Nature Nanotechnology·Yugang SunJohn A Rogers
Jun 3, 2010·Advanced Materials·Yingying ZhangQ X Jia
Aug 10, 2011·ACS Nano·Bong Gill ChoiHoSeok Park
Mar 14, 2012·IEEE Transactions on Bio-medical Engineering·Ha-Chul JungSang-Hoon Lee
Oct 13, 2012·Nature·K S NovoselovK Kim
Jan 22, 2013·Chemical Communications : Chem Comm·Mengting ChenChunzhong Li

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Citations

Mar 28, 2017·ACS Applied Materials & Interfaces·Chunya WangYingying Zhang
Mar 1, 2019·Biotechnology and Applied Biochemistry·Hanie KavandShahin Bonakdar
Jun 3, 2021·Materials·Marie N BarshutinaAlexey G Tkachev
Dec 11, 2019·ACS Applied Materials & Interfaces·Yujin HwangSungmook Jung
Nov 16, 2019·ACS Applied Materials & Interfaces·Sangwoo ParkJeong Gon Son

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