KERAMATNEJAD, Keramatnejad; ZHOU, Yun Shen; GAO, Yang; GOLGIR, Hossein Rabiee; WANG, Mengxiao; JIANG, Li Jia; SILVAIN, Jean-François; LU, Yong Feng

doi:10.1063/1.4934255

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KERAMATNEJAD, Keramatnejad
Department of Electrical Engineering

ZHOU, Yun Shen
Department of Electrical Engineering

GAO, Yang
Department of Electrical Engineering

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Journal of Applied Physics. 2015, vol. 118, n° 15, p. 154311 (5 p.)

American Institute of Physics

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In this study, laser-processed multi-walled carbon nanotube (MWCNT)/Cu conductors are introduced as potential passive components to mitigate the skin effect of Cu at high frequencies (0–10 MHz). Suppressed skin effect is observed in the MWCNT/Cu conductors compared to primitive Cu. At an AC frequency of 10 MHz, a maximum AC resistance reduction of 94% was observed in a MWCNT/Cu conductor after being irradiated at a laser power density of 189 W/cm2. The reduced skin effect in the MWCNT/Cu conductors is ascribed to the presence of MWCNT channels which are insensitive to AC frequencies. The laser irradiation process is observed to play a crucial role in reducing contact resistance at the MWCNT-Cu interfaces, removing impurities in MWCNTs, and densifying MWCNT films.< Réduire

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Skin effect mitigation in laser processed multi-walled carbon nanotube/copper conductors

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