Journal
CARBON
Volume 47, Issue 10, Pages 2436-2441Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2009.04.045
Keywords
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Funding
- Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean Government (MEST) [R11-2008-088-01001-0]
- National Research Foundation of Korea [R11-2008-088-01001-0, 2008-0062496] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Dense, aligned single-walled carbon nanotubes (SWCNTs) were obtained by nitric acid treatment and the subsequent removal of metal impurities by HCl. The highly purified SWCNTs were dispersed with sodium dodecyl sulfate in order to obtain a stabilized suspension for spray coating on flexible polyethylene terephthalate (PET) substrate. The low sheet resistance of the resulting thin conductive film on the PET substrate was due to the interconnecting networks of highly purified SWCNT bundles. These bundles formed strong crisscross networks of nanotubes clustered together with well defined channels, thus improving the electrical and optical properties of the film. Its sheet resistance varied from 956 to 472 Omega/square with 85% optical transmittance at a wavelength of 550 nm. The films may be potential candidates for flexible display applications. (C) 2009 Elsevier Ltd. All rights reserved.
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