Bias-heating recovery of MWCNT gas sensor

Seung IL Moon; Kyeong Kap Paek; Yun Hi Lee; Hun Kuk Park; Jai Kyeong Kim; Soo Won Kim; Byeong Kwon Ju

doi:10.1016/j.matlet.2007.12.027

Bias-heating recovery of MWCNT gas sensor

Seung IL Moon, Kyeong Kap Paek, Yun Hi Lee, Hun Kuk Park, Jai Kyeong Kim, Soo Won Kim, Byeong Kwon Ju

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

28 Citations (Scopus)

Abstract

A sensor was made using Au/Cr electrodes on a glass substrate and a thin carbon multiwall nanotube film printed between them. A bias-heating method was used completely to desorb gas molecules and restore its initial conductance. The temperature of the thin carbon nanotube film varied depending on the magnitude of the voltage used, and this relationship was investigated. After being used to detect NO₂, the sensor returned to its initial conductance. This method enables complete recovery without additional processing steps, such as the fabrication of heat structure and ambient heating.

Original language	English
Pages (from-to)	2422-2425
Number of pages	4
Journal	Materials Letters
Volume	62
Issue number	16
DOIs	https://doi.org/10.1016/j.matlet.2007.12.027
Publication status	Published - 2008 Jun 15

Bibliographical note

Funding Information:
This work was supported by the National Research Laboratory Program (R0A-2007-000-20111-0) of the Ministry and Science of Technology in Korea and partially supported by the Seoul R&BD Program (CR070054).

Keywords

Bias-heating recovery
Gas sensor
Multiwall carbon nanotubes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2007.12.027

Cite this

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title = "Bias-heating recovery of MWCNT gas sensor",

abstract = "A sensor was made using Au/Cr electrodes on a glass substrate and a thin carbon multiwall nanotube film printed between them. A bias-heating method was used completely to desorb gas molecules and restore its initial conductance. The temperature of the thin carbon nanotube film varied depending on the magnitude of the voltage used, and this relationship was investigated. After being used to detect NO2, the sensor returned to its initial conductance. This method enables complete recovery without additional processing steps, such as the fabrication of heat structure and ambient heating.",

keywords = "Bias-heating recovery, Gas sensor, Multiwall carbon nanotubes",

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AU - Paek, Kyeong Kap

AU - Lee, Yun Hi

AU - Park, Hun Kuk

AU - Kim, Jai Kyeong

AU - Kim, Soo Won

AU - Ju, Byeong Kwon

N1 - Funding Information: This work was supported by the National Research Laboratory Program (R0A-2007-000-20111-0) of the Ministry and Science of Technology in Korea and partially supported by the Seoul R&BD Program (CR070054).

PY - 2008/6/15

Y1 - 2008/6/15

N2 - A sensor was made using Au/Cr electrodes on a glass substrate and a thin carbon multiwall nanotube film printed between them. A bias-heating method was used completely to desorb gas molecules and restore its initial conductance. The temperature of the thin carbon nanotube film varied depending on the magnitude of the voltage used, and this relationship was investigated. After being used to detect NO2, the sensor returned to its initial conductance. This method enables complete recovery without additional processing steps, such as the fabrication of heat structure and ambient heating.

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Bias-heating recovery of MWCNT gas sensor

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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