4.8 Article

Electromagnetic interference shielding effectiveness of carbon-based materials prepared by screen printing

Journal

CARBON
Volume 47, Issue 8, Pages 1905-1910

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2009.03.033

Keywords

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Funding

  1. National Nature Science Foundation of China [60477003]
  2. Rising Star Program of Shanghai [07QA14109]
  3. Science and Technology Committee of Shanghai [0652nm033]
  4. Ministry of Education, China [P200503]
  5. PhD Program Scholarship Fund of ECNU 2007

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Screen printing, as a simple and efficient method, is used to fabricate a carbon-based film for electromagnetic interference (EMI) shielding applications. The results show that carbon nanotube (CNT) sheets are more effective in providing EMI shielding compared to graphite and carbon black sheets in abroad-band frequency range due to better electron transmission. A thin printed 150 mu m 15 wt% CNT film exhibits similar shielding performance to a thicker 1.5 mm 15 wt% CNT epoxy composites, illustrating that screen printing could be a promising approach to fabricate thin EMI shielding films for commercial applications. (C) 2009 Elsevier Ltd. All rights reserved.

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