Low-Cost and Ultra-Strong p-Type Doping of Carbon Nanotube films by a Piranha Mixture

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Hosea Tantang
  • Jinchong Xiao
  • Jun Wei
  • Mary Bee Eng Chan-Park
  • Lain-Jong Li

Detail(s)

Original languageEnglish
Pages (from-to)4182-4186
Journal / PublicationEuropean Journal of Inorganic Chemistry
Issue number27
Online published2 Aug 2011
Publication statusPublished - Sep 2011
Externally publishedYes

Abstract

Recent studies have demonstrated that single-walled carbon nanotube (SWCNT) films can be doped by a nitric/sulfuric acid treatment to significantly improve its conductivity. However, the sheet resistance is still too high for many applications. Here we report on a simple treatment using a piranha mixture that could further enhance SWCNT film conductivity. The high redox potentials of hydrogen peroxides combined with the acidity of sulfuric acid enabled strong p-doping of the carbon nanotube films. Absorption peak suppression and a G-band shift provided proof of strong p-doping of the SWCNT films. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Research Area(s)

  • Carbon, Conducting materials, Doping, Nanotubes, Piranha mixture

Citation Format(s)

Low-Cost and Ultra-Strong p-Type Doping of Carbon Nanotube films by a Piranha Mixture. / Tantang, Hosea; Xiao, Jinchong; Wei, Jun; Chan-Park, Mary Bee Eng; Li, Lain-Jong; Zhang, Qichun.

In: European Journal of Inorganic Chemistry, No. 27, 09.2011, p. 4182-4186.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review