Novel array-type gas sensors using conducting polymers, and their performance for gas identification

Yoshiaki Sakurai; Ho Sup Jung; Toshinori Shimanouchi; Takao Inoguchi; Seiichi Morita; Ryoich Kuboi; Kazuki Natsukawa

doi:10.1016/S0925-4005(01)01069-3

Novel array-type gas sensors using conducting polymers, and their performance for gas identification

Yoshiaki Sakurai, Ho Sup Jung, Toshinori Shimanouchi, Takao Inoguchi, Seiichi Morita, Ryoich Kuboi, Kazuki Natsukawa

Research output: Contribution to journal › Conference article › peer-review

29 Citations (Scopus)

Abstract

Novel gas sensor devices have been developed using polythiophene (pTh) film and poly(3-n-dodecylthiophene) (pDpTh) film coated over pTh film. These polymer films were electrochemically deposited and doped by cyclic voltammetry on thin-film electrodes where the isolation gap was formed by a micromachining process. We examined the response characteristics of the conducting polymer films against various sample gases over a range of temperatures of the sensitive layer. The resistance changes of both sensitive layers of pTh and pDpTh were highly dependent on the kind of layer. In particular, pTh film responded to ammonia gas and pDpTh films clearly responded to hydrophobic gases, such as chloroform, methane and ethanol. The response of these films to several gases was analyzed with a pattern recognition (PARC) algorithm. It was found that our simple gas sensor device could discriminate between the gases that were used here.

Original language	English
Pages (from-to)	270-275
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	83
Issue number	1-3
DOIs	https://doi.org/10.1016/S0925-4005(01)01069-3
Publication status	Published - Mar 15 2002
Externally published	Yes
Event	Selected papers from Transduckers '01 Eurosensors XV (Transduckers 2001) - Munich, Germany Duration: Jun 10 2001 → Jun 14 2001

Keywords

Gas sensor
Hydrophobic effect
Pattern recognition algorithm
Polythiophene and poly(3-n-dodecylthiphene)
Swelling

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/S0925-4005(01)01069-3

Cite this

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title = "Novel array-type gas sensors using conducting polymers, and their performance for gas identification",

abstract = "Novel gas sensor devices have been developed using polythiophene (pTh) film and poly(3-n-dodecylthiophene) (pDpTh) film coated over pTh film. These polymer films were electrochemically deposited and doped by cyclic voltammetry on thin-film electrodes where the isolation gap was formed by a micromachining process. We examined the response characteristics of the conducting polymer films against various sample gases over a range of temperatures of the sensitive layer. The resistance changes of both sensitive layers of pTh and pDpTh were highly dependent on the kind of layer. In particular, pTh film responded to ammonia gas and pDpTh films clearly responded to hydrophobic gases, such as chloroform, methane and ethanol. The response of these films to several gases was analyzed with a pattern recognition (PARC) algorithm. It was found that our simple gas sensor device could discriminate between the gases that were used here.",

keywords = "Gas sensor, Hydrophobic effect, Pattern recognition algorithm, Polythiophene and poly(3-n-dodecylthiphene), Swelling",

author = "Yoshiaki Sakurai and Jung, {Ho Sup} and Toshinori Shimanouchi and Takao Inoguchi and Seiichi Morita and Ryoich Kuboi and Kazuki Natsukawa",

note = "Funding Information: We would like to thank all members of SEIS project for their kind encouragement and useful discussions. This work was supported as super eye image sensor (SEIS) project by the Foundation for Osaka Research Enterprise Companies (FORECS).; Selected papers from Transduckers '01 Eurosensors XV (Transduckers 2001) ; Conference date: 10-06-2001 Through 14-06-2001",

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AU - Sakurai, Yoshiaki

AU - Jung, Ho Sup

AU - Shimanouchi, Toshinori

AU - Inoguchi, Takao

AU - Morita, Seiichi

AU - Kuboi, Ryoich

AU - Natsukawa, Kazuki

N1 - Funding Information: We would like to thank all members of SEIS project for their kind encouragement and useful discussions. This work was supported as super eye image sensor (SEIS) project by the Foundation for Osaka Research Enterprise Companies (FORECS).

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N2 - Novel gas sensor devices have been developed using polythiophene (pTh) film and poly(3-n-dodecylthiophene) (pDpTh) film coated over pTh film. These polymer films were electrochemically deposited and doped by cyclic voltammetry on thin-film electrodes where the isolation gap was formed by a micromachining process. We examined the response characteristics of the conducting polymer films against various sample gases over a range of temperatures of the sensitive layer. The resistance changes of both sensitive layers of pTh and pDpTh were highly dependent on the kind of layer. In particular, pTh film responded to ammonia gas and pDpTh films clearly responded to hydrophobic gases, such as chloroform, methane and ethanol. The response of these films to several gases was analyzed with a pattern recognition (PARC) algorithm. It was found that our simple gas sensor device could discriminate between the gases that were used here.

AB - Novel gas sensor devices have been developed using polythiophene (pTh) film and poly(3-n-dodecylthiophene) (pDpTh) film coated over pTh film. These polymer films were electrochemically deposited and doped by cyclic voltammetry on thin-film electrodes where the isolation gap was formed by a micromachining process. We examined the response characteristics of the conducting polymer films against various sample gases over a range of temperatures of the sensitive layer. The resistance changes of both sensitive layers of pTh and pDpTh were highly dependent on the kind of layer. In particular, pTh film responded to ammonia gas and pDpTh films clearly responded to hydrophobic gases, such as chloroform, methane and ethanol. The response of these films to several gases was analyzed with a pattern recognition (PARC) algorithm. It was found that our simple gas sensor device could discriminate between the gases that were used here.

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Novel array-type gas sensors using conducting polymers, and their performance for gas identification

Abstract

Keywords

ASJC Scopus subject areas

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