Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect

Yang Doo Lee; Woo Sung Cho; Seung IL Moon; Yun Hi Lee; Jai Kyeong Kim; Sahn Nahm; Byeong Kwon Ju

doi:10.1016/j.cplett.2006.11.004

Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect

Yang Doo Lee, Woo Sung Cho, Seung IL Moon, Yun Hi Lee, Jai Kyeong Kim, Sahn Nahm, Byeong Kwon Ju

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

31 Citations (Scopus)

Abstract

Gas sensors for NO₂ detection were fabricated using printed multiwalled carbon nanotubes (MWCNTs) before and after electric field surface treatment. Printed MWCNTs showed an increase of sensitivity upon exposure to NO₂ and field emission due to vertical alignment and protrusion of CNTs from surface layer after electric field surface treatment. Electron field emission plays a role recovery when exposed to gas molecules in CNT. A Fast recovery time of the printed MWCNT gas sensor was obtained by ohmic heat with a partial field emission effect at room temperature.

Original language	English
Pages (from-to)	105-109
Number of pages	5
Journal	Chemical Physics Letters
Volume	433
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2006.11.004
Publication status	Published - 2006 Dec 29

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/j.cplett.2006.11.004

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title = "Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect",

abstract = "Gas sensors for NO2 detection were fabricated using printed multiwalled carbon nanotubes (MWCNTs) before and after electric field surface treatment. Printed MWCNTs showed an increase of sensitivity upon exposure to NO2 and field emission due to vertical alignment and protrusion of CNTs from surface layer after electric field surface treatment. Electron field emission plays a role recovery when exposed to gas molecules in CNT. A Fast recovery time of the printed MWCNT gas sensor was obtained by ohmic heat with a partial field emission effect at room temperature.",

author = "Lee, {Yang Doo} and Cho, {Woo Sung} and Moon, {Seung IL} and Lee, {Yun Hi} and Kim, {Jai Kyeong} and Sahn Nahm and Ju, {Byeong Kwon}",

note = "Funding Information: This work was supported in part by MIC and IITA through IT Leading R&D Support Project. The authors thank government for financial supports.",

year = "2006",

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doi = "10.1016/j.cplett.2006.11.004",

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T1 - Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect

AU - Lee, Yang Doo

AU - Cho, Woo Sung

AU - Moon, Seung IL

AU - Lee, Yun Hi

AU - Kim, Jai Kyeong

AU - Nahm, Sahn

AU - Ju, Byeong Kwon

N1 - Funding Information: This work was supported in part by MIC and IITA through IT Leading R&D Support Project. The authors thank government for financial supports.

PY - 2006/12/29

Y1 - 2006/12/29

N2 - Gas sensors for NO2 detection were fabricated using printed multiwalled carbon nanotubes (MWCNTs) before and after electric field surface treatment. Printed MWCNTs showed an increase of sensitivity upon exposure to NO2 and field emission due to vertical alignment and protrusion of CNTs from surface layer after electric field surface treatment. Electron field emission plays a role recovery when exposed to gas molecules in CNT. A Fast recovery time of the printed MWCNT gas sensor was obtained by ohmic heat with a partial field emission effect at room temperature.

AB - Gas sensors for NO2 detection were fabricated using printed multiwalled carbon nanotubes (MWCNTs) before and after electric field surface treatment. Printed MWCNTs showed an increase of sensitivity upon exposure to NO2 and field emission due to vertical alignment and protrusion of CNTs from surface layer after electric field surface treatment. Electron field emission plays a role recovery when exposed to gas molecules in CNT. A Fast recovery time of the printed MWCNT gas sensor was obtained by ohmic heat with a partial field emission effect at room temperature.

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DO - 10.1016/j.cplett.2006.11.004

M3 - Article

AN - SCOPUS:33845318236

SN - 0009-2614

VL - 433

SP - 105

EP - 109

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Gas sensing properties of printed multiwalled carbon nanotubes using the field emission effect

Abstract

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