Journal
CARBON
Volume 49, Issue 10, Pages 3371-3375Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.03.055
Keywords
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Funding
- NSFC [51073088, 91023027, 50573038, 20874056]
- 863 Program [2009AA04Z308]
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Divalent metal ions (M(2+), M = Cu, Ca or Mg) are used to coordinate oxidized carbon nanotubes (CNTs) and chemically modified graphene (CMG) by the oxygen-containing functional groups. Flexible and transparent conductive films of M(2+)-coordinated CNT/CMG networks are produced by spin coating. The lowest sheet resistance is 680 Omega/sq at 86% transmittance. Chemical doping with SOCl(2) further decreases the value to 370 Omega/sq with only 1% loss in transmittance. The M(2+)-coordinated CNT/CMG films can withstand 200 bending cycles without losing much in sheet resistance. This method provides a new route to transparent electrode materials with high flexibility and strength. (C) 2011 Elsevier Ltd. All rights reserved.
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