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

2009; Elsevier BV; Volume: 47; Issue: 8 Linguagem: Inglês

10.1016/j.carbon.2009.03.033

1873-3891

Lili Wang, Beng Kang Tay, Kye Yak See, Zhuo Sun, Lin-Kin Tan, Darren Lua,

Advanced Antenna and Metasurface Technologies

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 μm 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.