Novel Fabrication of Conductive Polymers Contained Micro-Array Gas Sensitive Films Using A Micromanipulation Method

H. S. Jung; T. Shimanouchi; S. Morita; R. Kuboi

doi:10.1002/elan.200302660

Novel Fabrication of Conductive Polymers Contained Micro-Array Gas Sensitive Films Using A Micromanipulation Method

H. S. Jung, T. Shimanouchi, S. Morita, R. Kuboi

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

6 Citations (Scopus)

Abstract

A novel method for fabricating a micro gas sensor film on an indium tin oxide (ITO) electrode patterned using micro-machining technology was developed. A micromanipulation system equipped with a counter electrode (Au; Ø10 μm) and a microsyringe, which was connected to a microinjection system, was first constructed. With this system, micro gas sensor arrays could be successfully prepared on ITO electrodes. Two kinds of micro gas sensor films were prepared, based on polythiophene (PTh) and poly(3-n-dodecylthiophene) (PD). The response behavior of conventional PTh and micro-PTh films against NH ₃ at three different operating temperatures (25, 40 and 60°C) was investigated by measuring the resistance of the film. With the micro-PTh film, a reversible response was observed against NH₃ when measured at 40 and 60 °C. In addition, the responsive characteristics of the microsensor films against different testing gases were examined at the three operating temperatures. The resistance of the microsensor films of PTh and PD changed considerably, depending on the type of testing gas, allowing these sensor films to be used for the detection of various gases. Furthermore, the microsensor films had a high stability compared with conventional films prepared from the same polymer.

Original language	English
Pages (from-to)	1453-1459
Number of pages	7
Journal	Electroanalysis
Volume	15
Issue number	18
DOIs	https://doi.org/10.1002/elan.200302660
Publication status	Published - Oct 1 2003
Externally published	Yes

Keywords

Micromanipulation
Microsensor array
Odor gas
Poly(3-n-dodecylthiophene)
Polythiophene
Reversibility

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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title = "Novel Fabrication of Conductive Polymers Contained Micro-Array Gas Sensitive Films Using A Micromanipulation Method",

abstract = "A novel method for fabricating a micro gas sensor film on an indium tin oxide (ITO) electrode patterned using micro-machining technology was developed. A micromanipulation system equipped with a counter electrode (Au; {\O}10 μm) and a microsyringe, which was connected to a microinjection system, was first constructed. With this system, micro gas sensor arrays could be successfully prepared on ITO electrodes. Two kinds of micro gas sensor films were prepared, based on polythiophene (PTh) and poly(3-n-dodecylthiophene) (PD). The response behavior of conventional PTh and micro-PTh films against NH 3 at three different operating temperatures (25, 40 and 60°C) was investigated by measuring the resistance of the film. With the micro-PTh film, a reversible response was observed against NH3 when measured at 40 and 60 °C. In addition, the responsive characteristics of the microsensor films against different testing gases were examined at the three operating temperatures. The resistance of the microsensor films of PTh and PD changed considerably, depending on the type of testing gas, allowing these sensor films to be used for the detection of various gases. Furthermore, the microsensor films had a high stability compared with conventional films prepared from the same polymer.",

keywords = "Micromanipulation, Microsensor array, Odor gas, Poly(3-n-dodecylthiophene), Polythiophene, Reversibility",

author = "Jung, {H. S.} and T. Shimanouchi and S. Morita and R. Kuboi",

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AU - Kuboi, R.

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AB - A novel method for fabricating a micro gas sensor film on an indium tin oxide (ITO) electrode patterned using micro-machining technology was developed. A micromanipulation system equipped with a counter electrode (Au; Ø10 μm) and a microsyringe, which was connected to a microinjection system, was first constructed. With this system, micro gas sensor arrays could be successfully prepared on ITO electrodes. Two kinds of micro gas sensor films were prepared, based on polythiophene (PTh) and poly(3-n-dodecylthiophene) (PD). The response behavior of conventional PTh and micro-PTh films against NH 3 at three different operating temperatures (25, 40 and 60°C) was investigated by measuring the resistance of the film. With the micro-PTh film, a reversible response was observed against NH3 when measured at 40 and 60 °C. In addition, the responsive characteristics of the microsensor films against different testing gases were examined at the three operating temperatures. The resistance of the microsensor films of PTh and PD changed considerably, depending on the type of testing gas, allowing these sensor films to be used for the detection of various gases. Furthermore, the microsensor films had a high stability compared with conventional films prepared from the same polymer.

KW - Micromanipulation

KW - Microsensor array

KW - Odor gas

KW - Poly(3-n-dodecylthiophene)

KW - Polythiophene

KW - Reversibility

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Novel Fabrication of Conductive Polymers Contained Micro-Array Gas Sensitive Films Using A Micromanipulation Method

Abstract

Keywords

ASJC Scopus subject areas

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