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Flexible Multifunctionalized Carbon Nanotubes‐Based Hybrid Nanowires
Author(s) -
Wang Nan,
Jiang Di,
Ye Lilei,
Murugesan Murali,
Edwards Michael,
Fu Yifeng,
Liu Johan
Publication year - 2015
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201501017
Subject(s) - materials science , carbon nanotube , nanowire , polydimethylsiloxane , composite material , stretchable electronics , nanotechnology , sheet resistance , bending , flexible electronics , deformation (meteorology) , substrate (aquarium) , electrical conductor , electronics , layer (electronics) , chemistry , oceanography , geology
In this work, flexible multifunctionalized carbon nanotube (CNT)‐based hybrid nanowires are synthesized through surface modification processes. The good dispersability of the hybrid nanowire in polar solvents facilitates directly making fine patterns with a minimum width of 40 μm for applications of flexible and stretchable circuits (FSCs). The hybrid nanowire possesses a flexible and highly conductive structure which demonstrates stable electro‐mechanical properties on polydimethylsiloxane (PDMS) substrates under large structural deformation. FSCs fabricated from the hybrid nanowires show a constant resistance of 0.096 Ω □ −1 (equivalent of a resistivity 0.96 Ω μm) under repeated bending cycles. The FSCs also have a low and stable sheet resistance of 0.4 Ω □ −1 for strains up to 30%, which is almost four orders of magnitude lower than that of pure CNT samples (1316 Ω □ −1 ). Further improved stretchability and electro‐mechanical properties (0.1 Ω □ −1 , at the strain of 100%) are achieved with a prestrain PDMS substrate. Repeated deformation tests demonstrate the high reliability of FSCs. The observed stable and reliable electro‐mechanical performance of FSCs suggests the potential use of the material in wearable and portable electronics.