Ultrathin and Flexible Gas Sensor Based on Monolayer Graphene for Environmental Monitoring

Preeti Shakya; Mohammed Saquib Khan; Nikita Bhardwaj; Deependra Jhankal; Nisha Verma; Kanupriya Sachdev

doi:10.1007/978-981-99-4685-3_27

Ultrathin and Flexible Gas Sensor Based on Monolayer Graphene for Environmental Monitoring

Preeti Shakya
, Mohammed Saquib Khan
, Nikita Bhardwaj
, Deependra Jhankal
, Nisha Verma
, Kanupriya Sachdev^*

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

1 Scopus citations

Abstract

In this study, the toxic gas detection ability of chemical vapor-deposited (CVD) monolayer graphene (MLG) is examined. The electron beam deposition technique is utilized in order to deposit silver (Ag) onto a pliable polyethylene terephthalate (PET) substrate for the production of the interdigitated electrode (IDE) composed of the aforementioned material. The grown CVD graphene is transferred through PMMA-free approach using PVA on the IDE-deposited PET substrates. Raman spectroscopy mapping revealed an appropriate quality of MLG with uniformity. The use of both FE-SEM and HR-TEM allows for a comprehensive analysis of the growth of monolayer graphene. FE-SEM provides information about the surface morphology, while HR-TEM gives details about the structure and atomic arrangement of the material. The gas sensing characteristics of the fabricated sensing device are tested for environmental pollutants (NO₂, NH₃) at room temperature. The sensing mechanisms in the presence of oxidizing and reducing gases are further discussed. The response/recovery time and sensitivity are also evaluated, and the MLG gas sensor showed good stability and repeatability.

Original language	English
Title of host publication	Springer Proceedings in Materials
Publisher	Springer Nature
Pages	197-203
Number of pages	7
DOIs	https://doi.org/10.1007/978-981-99-4685-3_27
State	Published - 2023
Externally published	Yes

Publication series

Name	Springer Proceedings in Materials
Volume	28
ISSN (Print)	2662-3161
ISSN (Electronic)	2662-317X

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Keywords

Chemical vapor deposition
Chemiresistive gas sensor
Flexible gas sensor
Interdigital electrodes
Single-layer graphene

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Renewable Energy, Sustainability and the Environment
Metals and Alloys

Access to Document

10.1007/978-981-99-4685-3_27

Cite this

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title = "Ultrathin and Flexible Gas Sensor Based on Monolayer Graphene for Environmental Monitoring",

abstract = "In this study, the toxic gas detection ability of chemical vapor-deposited (CVD) monolayer graphene (MLG) is examined. The electron beam deposition technique is utilized in order to deposit silver (Ag) onto a pliable polyethylene terephthalate (PET) substrate for the production of the interdigitated electrode (IDE) composed of the aforementioned material. The grown CVD graphene is transferred through PMMA-free approach using PVA on the IDE-deposited PET substrates. Raman spectroscopy mapping revealed an appropriate quality of MLG with uniformity. The use of both FE-SEM and HR-TEM allows for a comprehensive analysis of the growth of monolayer graphene. FE-SEM provides information about the surface morphology, while HR-TEM gives details about the structure and atomic arrangement of the material. The gas sensing characteristics of the fabricated sensing device are tested for environmental pollutants (NO2, NH3) at room temperature. The sensing mechanisms in the presence of oxidizing and reducing gases are further discussed. The response/recovery time and sensitivity are also evaluated, and the MLG gas sensor showed good stability and repeatability.",

keywords = "Chemical vapor deposition, Chemiresistive gas sensor, Flexible gas sensor, Interdigital electrodes, Single-layer graphene",

author = "Preeti Shakya and Khan, \{Mohammed Saquib\} and Nikita Bhardwaj and Deependra Jhankal and Nisha Verma and Kanupriya Sachdev",

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year = "2023",

doi = "10.1007/978-981-99-4685-3\_27",

language = "English",

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T1 - Ultrathin and Flexible Gas Sensor Based on Monolayer Graphene for Environmental Monitoring

AU - Shakya, Preeti

AU - Khan, Mohammed Saquib

AU - Bhardwaj, Nikita

AU - Jhankal, Deependra

AU - Verma, Nisha

AU - Sachdev, Kanupriya

PY - 2023

Y1 - 2023

N2 - In this study, the toxic gas detection ability of chemical vapor-deposited (CVD) monolayer graphene (MLG) is examined. The electron beam deposition technique is utilized in order to deposit silver (Ag) onto a pliable polyethylene terephthalate (PET) substrate for the production of the interdigitated electrode (IDE) composed of the aforementioned material. The grown CVD graphene is transferred through PMMA-free approach using PVA on the IDE-deposited PET substrates. Raman spectroscopy mapping revealed an appropriate quality of MLG with uniformity. The use of both FE-SEM and HR-TEM allows for a comprehensive analysis of the growth of monolayer graphene. FE-SEM provides information about the surface morphology, while HR-TEM gives details about the structure and atomic arrangement of the material. The gas sensing characteristics of the fabricated sensing device are tested for environmental pollutants (NO2, NH3) at room temperature. The sensing mechanisms in the presence of oxidizing and reducing gases are further discussed. The response/recovery time and sensitivity are also evaluated, and the MLG gas sensor showed good stability and repeatability.

AB - In this study, the toxic gas detection ability of chemical vapor-deposited (CVD) monolayer graphene (MLG) is examined. The electron beam deposition technique is utilized in order to deposit silver (Ag) onto a pliable polyethylene terephthalate (PET) substrate for the production of the interdigitated electrode (IDE) composed of the aforementioned material. The grown CVD graphene is transferred through PMMA-free approach using PVA on the IDE-deposited PET substrates. Raman spectroscopy mapping revealed an appropriate quality of MLG with uniformity. The use of both FE-SEM and HR-TEM allows for a comprehensive analysis of the growth of monolayer graphene. FE-SEM provides information about the surface morphology, while HR-TEM gives details about the structure and atomic arrangement of the material. The gas sensing characteristics of the fabricated sensing device are tested for environmental pollutants (NO2, NH3) at room temperature. The sensing mechanisms in the presence of oxidizing and reducing gases are further discussed. The response/recovery time and sensitivity are also evaluated, and the MLG gas sensor showed good stability and repeatability.

KW - Chemical vapor deposition

KW - Chemiresistive gas sensor

KW - Flexible gas sensor

KW - Interdigital electrodes

KW - Single-layer graphene

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DO - 10.1007/978-981-99-4685-3_27

M3 - Chapter

AN - SCOPUS:85171984900

T3 - Springer Proceedings in Materials

SP - 197

EP - 203

BT - Springer Proceedings in Materials

PB - Springer Nature

ER -

Ultrathin and Flexible Gas Sensor Based on Monolayer Graphene for Environmental Monitoring

Abstract

Publication series

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this