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

K. Keramatnejad, Y. S. Zhou, Y. Gao, H. Rabiee Golgir, M. Wang, L. Jiang, J. F. Silvain, Y. F. Lu

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6 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number154311
JournalJournal of Applied Physics
Volume118
Issue number15
DOIs
StatePublished - Oct 21 2015

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Keramatnejad, K., Zhou, Y. S., Gao, Y., Rabiee Golgir, H., Wang, M., Jiang, L., Silvain, J. F., & Lu, Y. F. (2015). Skin effect mitigation in laser processed multi-walled carbon nanotube/copper conductors. Journal of Applied Physics, 118(15), [154311]. https://doi.org/10.1063/1.4934255