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Issue 9, 2017
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Improving the electrical properties of carbon nanotubes with interhalogen compounds

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Abstract

The electronic properties of carbon nanostructures such as carbon nanotubes (CNTs) or graphene can easily be tuned by the action of various doping agents. We present an experimental study and numerical analysis of how and why metallic and semiconductive CNTs can be p-doped by exposing them to two interhalogens: iodine monochloride and iodine monobromide. Simple application of these compounds was found to reduce the electrical resistance by as much as 2/3 without causing any unfavorable chemical modification, which could disrupt the highly conductive network of sp2 carbon atoms. To gain better insight into the underlying mechanism of the observed experimental results, we provide a first principles indication of how interhalogens interact with model metallic (5,5) and semiconductive (10,0) CNTs.

Graphical abstract: Improving the electrical properties of carbon nanotubes with interhalogen compounds

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Publication details

The article was received on 10 Jan 2017, accepted on 09 Feb 2017 and first published on 10 Feb 2017


Article type: Paper
DOI: 10.1039/C7NR00224F
Citation: Nanoscale, 2017,9, 3212-3221
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    Improving the electrical properties of carbon nanotubes with interhalogen compounds

    D. Janas, K. Z. Milowska, P. D. Bristowe and K. K. K. Koziol, Nanoscale, 2017, 9, 3212
    DOI: 10.1039/C7NR00224F

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