Ultraviolet illumination effect on monolayer graphene-based resistive sensor for acetone detection

Chia Ming Yang; Tsung Cheng Chen; Yu Cheng Yang; Ming Che Hsiao; Meyya Meyyappan; Chao Sung Lai

doi:10.1016/j.vacuum.2016.08.006

Ultraviolet illumination effect on monolayer graphene-based resistive sensor for acetone detection

Chia Ming Yang^*, Tsung Cheng Chen, Yu Cheng Yang, Ming Che Hsiao, Meyya Meyyappan, Chao Sung Lai

^*Corresponding author for this work

Institute of Pioneer Semiconductor Innovation

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

39 Scopus citations

Abstract

In this study, a room-temperature acetone gas sensor based on monolayer graphene is proposed with the improvement by ultraviolet (UV) illumination. The monolayer graphene film was grown by low pressure chemical vapor deposition and then transferred to the interdigital gold electrode by the standard transferred method. To test the acetone sensing properties, the concentration of 300, 600 and 900 ppb acetone provided by a gas standards generator is applied in the testing chamber. The resistance changes following a doping type modification of graphene between illumination and acetone gas. A 1.9% change in short time illumination on graphene could be obtained at 600 ppb and room temperature, which could make this a candidate for biomedical application in the future. In the meantime, a mechanism is proposed to explain whole behavior based on photo-induced molecular desorption.

Original language	English
Pages (from-to)	89-95
Number of pages	7
Journal	Vacuum
Volume	140
DOIs	https://doi.org/10.1016/j.vacuum.2016.08.006
State	Published - 1 Jun 2017

Keywords

Acetone
Gas sensor
Graphene
Photodesorption
Ultraviolet

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10.1016/j.vacuum.2016.08.006

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title = "Ultraviolet illumination effect on monolayer graphene-based resistive sensor for acetone detection",

abstract = "In this study, a room-temperature acetone gas sensor based on monolayer graphene is proposed with the improvement by ultraviolet (UV) illumination. The monolayer graphene film was grown by low pressure chemical vapor deposition and then transferred to the interdigital gold electrode by the standard transferred method. To test the acetone sensing properties, the concentration of 300, 600 and 900 ppb acetone provided by a gas standards generator is applied in the testing chamber. The resistance changes following a doping type modification of graphene between illumination and acetone gas. A 1.9% change in short time illumination on graphene could be obtained at 600 ppb and room temperature, which could make this a candidate for biomedical application in the future. In the meantime, a mechanism is proposed to explain whole behavior based on photo-induced molecular desorption.",

keywords = "Acetone, Gas sensor, Graphene, Photodesorption, Ultraviolet",

author = "Yang, {Chia Ming} and Chen, {Tsung Cheng} and Yang, {Yu Cheng} and Hsiao, {Ming Che} and Meyya Meyyappan and Lai, {Chao Sung}",

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T1 - Ultraviolet illumination effect on monolayer graphene-based resistive sensor for acetone detection

AU - Yang, Chia Ming

AU - Chen, Tsung Cheng

AU - Yang, Yu Cheng

AU - Hsiao, Ming Che

AU - Meyyappan, Meyya

AU - Lai, Chao Sung

PY - 2017/6/1

Y1 - 2017/6/1

N2 - In this study, a room-temperature acetone gas sensor based on monolayer graphene is proposed with the improvement by ultraviolet (UV) illumination. The monolayer graphene film was grown by low pressure chemical vapor deposition and then transferred to the interdigital gold electrode by the standard transferred method. To test the acetone sensing properties, the concentration of 300, 600 and 900 ppb acetone provided by a gas standards generator is applied in the testing chamber. The resistance changes following a doping type modification of graphene between illumination and acetone gas. A 1.9% change in short time illumination on graphene could be obtained at 600 ppb and room temperature, which could make this a candidate for biomedical application in the future. In the meantime, a mechanism is proposed to explain whole behavior based on photo-induced molecular desorption.

AB - In this study, a room-temperature acetone gas sensor based on monolayer graphene is proposed with the improvement by ultraviolet (UV) illumination. The monolayer graphene film was grown by low pressure chemical vapor deposition and then transferred to the interdigital gold electrode by the standard transferred method. To test the acetone sensing properties, the concentration of 300, 600 and 900 ppb acetone provided by a gas standards generator is applied in the testing chamber. The resistance changes following a doping type modification of graphene between illumination and acetone gas. A 1.9% change in short time illumination on graphene could be obtained at 600 ppb and room temperature, which could make this a candidate for biomedical application in the future. In the meantime, a mechanism is proposed to explain whole behavior based on photo-induced molecular desorption.

KW - Acetone

KW - Gas sensor

KW - Graphene

KW - Photodesorption

KW - Ultraviolet

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JF - Vacuum

ER -

Ultraviolet illumination effect on monolayer graphene-based resistive sensor for acetone detection

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Keywords

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