NDLI: Single-Walled Carbon Nanotube Thin-Film Sensor for Ultrasensitive Gas Detection

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Single-Walled Carbon Nanotube Thin-Film Sensor for Ultrasensitive Gas Detection

Content Provider	Scilit
Author	Wongwiriyapan, Winadda Honda, Shin-Ichi Konishi, Hirofumi Mizuta, Tomoaki Ikuno, Takashi Ito, Tatsuya Maekawa, Toru Suzuki, Kengo Ishikawa, Hiroshi Oura, Kenjiro Katayama, Mitsuhiro
Copyright Year	2005
Description	Journal: Japanese Journal of Applied Physics We demonstrated a gas sensor fabricated by growing a single-walled carbon nanotube (SWNT) thin film directly on a conventional sensor substrate. $NO_{2}$ and $Cl_{2}$ were detected down to the ppb level under room-temperature operation with a fast response. Using an electrical breakdown technique, gas response sensitivity was improved by an order of magnitude. The relationship between gas concentration and sensor response was derived based on the Langmuir adsorption isotherm, predicting a detection limit of 8 ppb for $NO_{2}$. The SWNT thin-film gas sensor exhibits merits over other types of sensors by virtue of its simplicity in fabrication and feasible application.
Related Links	http://iopscience.iop.org/article/10.1143/JJAP.44.L482/pdf
ISSN	00214922
e-ISSN	13474065
DOI	10.1143/jjap.44.l482
Journal	Japanese Journal of Applied Physics
Issue Number	4L
Volume Number	44
Language	English
Publisher	IOP Publishing
Publisher Date	2005-04-01
Access Restriction	Open
Subject Keyword	Journal: Japanese Journal of Applied Physics Carbon Nanotube Gas Sensor Thin Film
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Engineering

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