Low-cost and ultra-strong p-type doping of carbon nanotube films by a piranha mixture

Hosea Tantang; Jinchong Xiao; Jun Wei; Mary Bee Eng Chan-Park; Lain Jong Li; Qichun Zhang

doi:10.1002/ejic.201100396

Low-cost and ultra-strong p-type doping of carbon nanotube films by a piranha mixture

Hosea Tantang^*, Jinchong Xiao, Jun Wei, Mary Bee Eng Chan-Park, Lain Jong Li, Qichun Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

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.

Original language	English (US)
Pages (from-to)	4182-4186
Number of pages	5
Journal	European Journal of Inorganic Chemistry
Issue number	27
DOIs	https://doi.org/10.1002/ejic.201100396
State	Published - Sep 2011
Externally published	Yes

Keywords

Carbon
Conducting materials
Doping
Nanotubes
Piranha mixture

ASJC Scopus subject areas

Inorganic Chemistry

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10.1002/ejic.201100396

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title = "Low-cost and ultra-strong p-type doping of carbon nanotube films by a piranha mixture",

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.",

keywords = "Carbon, Conducting materials, Doping, Nanotubes, Piranha mixture",

author = "Hosea Tantang and Jinchong Xiao and Jun Wei and Chan-Park, {Mary Bee Eng} and Li, {Lain Jong} and Qichun Zhang",

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AU - Tantang, Hosea

AU - Xiao, Jinchong

AU - Wei, Jun

AU - Chan-Park, Mary Bee Eng

AU - Li, Lain Jong

AU - Zhang, Qichun

PY - 2011/9

Y1 - 2011/9

N2 - 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.

AB - 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.

KW - Carbon

KW - Conducting materials

KW - Doping

KW - Nanotubes

KW - Piranha mixture

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JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 27

ER -

Low-cost and ultra-strong p-type doping of carbon nanotube films by a piranha mixture

Abstract

Keywords

ASJC Scopus subject areas

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