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 Citations (Scopus)

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
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
Publication status	Published - Sept 2011
Externally published	Yes

ASJC Scopus Subject Areas

Inorganic Chemistry

Keywords

Carbon
Conducting materials
Doping
Nanotubes
Piranha mixture

Access to Document

10.1002/ejic.201100396

Cite this

@article{8da809e421034642b63f6041fb1e9285,

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",

year = "2011",

month = sep,

doi = "10.1002/ejic.201100396",

language = "English",

pages = "4182--4186",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "John Wiley and Sons Ltd",

number = "27",

}

TY - JOUR

T1 - Low-cost and ultra-strong p-type doping of carbon nanotube films by a piranha mixture

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

UR - http://www.scopus.com/inward/record.url?scp=80052858008&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052858008&partnerID=8YFLogxK

U2 - 10.1002/ejic.201100396

DO - 10.1002/ejic.201100396

M3 - Article

AN - SCOPUS:80052858008

SN - 1434-1948

SP - 4182

EP - 4186

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

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this