Electrical properties of polypyrrole gas sensors fabricated under various pretreatment conditions

Hee Kwon Jun; Yong Su Hoh; Byung Soo Lee; Sang Tae Lee; Jeong Ok Lim; Duk Dong Lee; Jeung Soo Huh

doi:10.1016/j.snb.2003.06.002

Electrical properties of polypyrrole gas sensors fabricated under various pretreatment conditions

Hee Kwon Jun, Yong Su Hoh, Byung Soo Lee, Sang Tae Lee, Jeong Ok Lim, Duk Dong Lee, Jeung Soo Huh

Kyungpook National University

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

86 Scopus citations

Abstract

The polypyrrole (Ppy) incorporated with DBSA and APS was synthesized by chemical polymerization at 0°C under atmospheric conditions. Ppy films were prepared by the dip coating method on the alumina substrate with interdigitated electrodes in order to employ the gas sensor. The electrical properties of the sensors, such as sensitivity, response and recovery time, reproducibility and long-term stability were investigated in the flow systems after various pretreatments. The electrical properties of the sensors depended on the pretreatment conditions. Soaking pretreatment resulted in a quick response and recovery time of the sensor and maintained electrical properties of the sensor for 3 months. Initial resistance of the sensor decreased with thermal treatment and this improved the stability of the sensor.

Original language	English
Pages (from-to)	576-581
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	96
Issue number	3
DOIs	https://doi.org/10.1016/j.snb.2003.06.002
State	Published - 1 Dec 2003

Keywords

Gas sensor
Polypyrrole
Pretreatment

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10.1016/j.snb.2003.06.002

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title = "Electrical properties of polypyrrole gas sensors fabricated under various pretreatment conditions",

abstract = "The polypyrrole (Ppy) incorporated with DBSA and APS was synthesized by chemical polymerization at 0°C under atmospheric conditions. Ppy films were prepared by the dip coating method on the alumina substrate with interdigitated electrodes in order to employ the gas sensor. The electrical properties of the sensors, such as sensitivity, response and recovery time, reproducibility and long-term stability were investigated in the flow systems after various pretreatments. The electrical properties of the sensors depended on the pretreatment conditions. Soaking pretreatment resulted in a quick response and recovery time of the sensor and maintained electrical properties of the sensor for 3 months. Initial resistance of the sensor decreased with thermal treatment and this improved the stability of the sensor.",

keywords = "Gas sensor, Polypyrrole, Pretreatment",

author = "Jun, {Hee Kwon} and Hoh, {Yong Su} and Lee, {Byung Soo} and Lee, {Sang Tae} and Lim, {Jeong Ok} and Lee, {Duk Dong} and Huh, {Jeung Soo}",

year = "2003",

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doi = "10.1016/j.snb.2003.06.002",

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TY - JOUR

T1 - Electrical properties of polypyrrole gas sensors fabricated under various pretreatment conditions

AU - Jun, Hee Kwon

AU - Hoh, Yong Su

AU - Lee, Byung Soo

AU - Lee, Sang Tae

AU - Lim, Jeong Ok

AU - Lee, Duk Dong

AU - Huh, Jeung Soo

PY - 2003/12/1

Y1 - 2003/12/1

N2 - The polypyrrole (Ppy) incorporated with DBSA and APS was synthesized by chemical polymerization at 0°C under atmospheric conditions. Ppy films were prepared by the dip coating method on the alumina substrate with interdigitated electrodes in order to employ the gas sensor. The electrical properties of the sensors, such as sensitivity, response and recovery time, reproducibility and long-term stability were investigated in the flow systems after various pretreatments. The electrical properties of the sensors depended on the pretreatment conditions. Soaking pretreatment resulted in a quick response and recovery time of the sensor and maintained electrical properties of the sensor for 3 months. Initial resistance of the sensor decreased with thermal treatment and this improved the stability of the sensor.

AB - The polypyrrole (Ppy) incorporated with DBSA and APS was synthesized by chemical polymerization at 0°C under atmospheric conditions. Ppy films were prepared by the dip coating method on the alumina substrate with interdigitated electrodes in order to employ the gas sensor. The electrical properties of the sensors, such as sensitivity, response and recovery time, reproducibility and long-term stability were investigated in the flow systems after various pretreatments. The electrical properties of the sensors depended on the pretreatment conditions. Soaking pretreatment resulted in a quick response and recovery time of the sensor and maintained electrical properties of the sensor for 3 months. Initial resistance of the sensor decreased with thermal treatment and this improved the stability of the sensor.

KW - Gas sensor

KW - Polypyrrole

KW - Pretreatment

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DO - 10.1016/j.snb.2003.06.002

M3 - Article

AN - SCOPUS:0344896726

SN - 0925-4005

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

IS - 3

ER -

Electrical properties of polypyrrole gas sensors fabricated under various pretreatment conditions

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Keywords

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