Improved electrical conductivity of a non-covalently dispersed graphene-carbon nanotube film by chemical p-type doping

Woo Soon Jang; Soo Sang Chae; Se Jong Lee; Kie Moon Song; Hong Koo Baik

doi:10.1016/j.carbon.2011.09.057

Improved electrical conductivity of a non-covalently dispersed graphene-carbon nanotube film by chemical p-type doping

Woo Soon Jang, Soo Sang Chae, Se Jong Lee, Kie Moon Song, Hong Koo Baik

Department of Materials Science and Engineering

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

38 Citations (Scopus)

Abstract

Using a high-pressure air spray we developed a method to deposit electrically-conducting thin films consisting of non-covalently dispersed graphene and carbon nanotubes. The graphene-carbon nanotube film was immersed in a nitric acid and followed by exposure to fuming nitric acid. The acid treatment induced an increased concentration of atomic nitrogen on the graphene basal plane and carbon nanotube sidewall. This result indicates chemical p-type doping of the graphene oxide-carbon nanotube film. After the two acid treatments, the spray coated graphene oxide-carbon nanotube films on a glass substrate exhibit a low sheet resistance of 171 Ω/sq, and a high transmittance of 84% at a wavelength of 550 nm.

Original language	English
Pages (from-to)	943-951
Number of pages	9
Journal	Carbon
Volume	50
Issue number	3
DOIs	https://doi.org/10.1016/j.carbon.2011.09.057
Publication status	Published - 2012 Mar

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea [NRF] grant funded by the South Korean government [MEST] [Nos. 2010-0029207 and 2010-0000404 ].

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

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10.1016/j.carbon.2011.09.057

Cite this

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title = "Improved electrical conductivity of a non-covalently dispersed graphene-carbon nanotube film by chemical p-type doping",

abstract = "Using a high-pressure air spray we developed a method to deposit electrically-conducting thin films consisting of non-covalently dispersed graphene and carbon nanotubes. The graphene-carbon nanotube film was immersed in a nitric acid and followed by exposure to fuming nitric acid. The acid treatment induced an increased concentration of atomic nitrogen on the graphene basal plane and carbon nanotube sidewall. This result indicates chemical p-type doping of the graphene oxide-carbon nanotube film. After the two acid treatments, the spray coated graphene oxide-carbon nanotube films on a glass substrate exhibit a low sheet resistance of 171 Ω/sq, and a high transmittance of 84% at a wavelength of 550 nm.",

author = "Jang, {Woo Soon} and Chae, {Soo Sang} and Lee, {Se Jong} and Song, {Kie Moon} and Baik, {Hong Koo}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea [NRF] grant funded by the South Korean government [MEST] [Nos. 2010-0029207 and 2010-0000404 ]. ",

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doi = "10.1016/j.carbon.2011.09.057",

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AU - Jang, Woo Soon

AU - Chae, Soo Sang

AU - Lee, Se Jong

AU - Song, Kie Moon

AU - Baik, Hong Koo

N1 - Funding Information: This work was supported by the National Research Foundation of Korea [NRF] grant funded by the South Korean government [MEST] [Nos. 2010-0029207 and 2010-0000404 ].

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AB - Using a high-pressure air spray we developed a method to deposit electrically-conducting thin films consisting of non-covalently dispersed graphene and carbon nanotubes. The graphene-carbon nanotube film was immersed in a nitric acid and followed by exposure to fuming nitric acid. The acid treatment induced an increased concentration of atomic nitrogen on the graphene basal plane and carbon nanotube sidewall. This result indicates chemical p-type doping of the graphene oxide-carbon nanotube film. After the two acid treatments, the spray coated graphene oxide-carbon nanotube films on a glass substrate exhibit a low sheet resistance of 171 Ω/sq, and a high transmittance of 84% at a wavelength of 550 nm.

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Improved electrical conductivity of a non-covalently dispersed graphene-carbon nanotube film by chemical p-type doping

Abstract

Bibliographical note

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