Enhanced NO                         2                          Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration

Haifeng Fei; Gang Wu; Wei Ying Cheng; Wenjie Yan; Hongjun Xu; Duan Zhang; Yanfeng Zhao; Yanhui Lv; Yanhui Chen; Lei Zhang; Cormac Ó Coileáin; Chenglin Heng; Ching Ray Chang; Han Chun Wu

doi:10.1021/acsomega.8b03540

Enhanced NO ₂ Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration

Haifeng Fei, Gang Wu, Wei Ying Cheng, Wenjie Yan, Hongjun Xu, Duan Zhang, Yanfeng Zhao, Yanhui Lv, Yanhui Chen, Lei Zhang, Cormac Ó Coileáin, Chenglin Heng, Ching Ray Chang, Han Chun Wu^*

^*Corresponding author for this work

School of Physics

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

38 Citations (Scopus)

Abstract

Graphene is a single layer of carbon atoms with a large surface-to-volume ratio, providing a large capacity gas molecule adsorption and a strong surface sensitivity. Chemical vapor deposition-grown graphene-based NO ₂ gas sensors typically have detection limits from 100 parts per billion (ppb) to a few parts per million (ppm), with response times over 1000 s. Numerous methods have been proposed to enhance the NO ₂ sensing ability of graphenes. Among them, surface decoration with metal particles and metal-oxide particles has demonstrated the potential to enhance the gas-sensing properties. Here, we show that the NO ₂ sensing of graphene can be also enhanced via decoration with monodisperse polymer beads. In dark conditions, the detection limit is improved from 1000 to 45 ppb after the application of polystyrene (PS) beads. With laser illumination, a detection limit of 0.5 ppb is determined. The enhanced gas sensing is due to surface plasmon polaritons excited by interference and charge transfer between the PS beads. This method opens an interesting route for the application of graphene in gas sensing.

Original language	English
Pages (from-to)	3812-3819
Number of pages	8
Journal	ACS Omega
Volume	4
Issue number	2
DOIs	https://doi.org/10.1021/acsomega.8b03540
Publication status	Published - 21 Feb 2019

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Fei, H., Wu, G., Cheng, W. Y., Yan, W., Xu, H., Zhang, D., Zhao, Y., Lv, Y., Chen, Y., Zhang, L., Ó Coileáin, C., Heng, C., Chang, C. R., & Wu, H. C. (2019). Enhanced NO ₂ Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration ACS Omega, 4(2), 3812-3819. https://doi.org/10.1021/acsomega.8b03540

@article{cda589e9de04469cafb92f4e7435bcaa,

title = " Enhanced NO 2 Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration ",

abstract = " Graphene is a single layer of carbon atoms with a large surface-to-volume ratio, providing a large capacity gas molecule adsorption and a strong surface sensitivity. Chemical vapor deposition-grown graphene-based NO 2 gas sensors typically have detection limits from 100 parts per billion (ppb) to a few parts per million (ppm), with response times over 1000 s. Numerous methods have been proposed to enhance the NO 2 sensing ability of graphenes. Among them, surface decoration with metal particles and metal-oxide particles has demonstrated the potential to enhance the gas-sensing properties. Here, we show that the NO 2 sensing of graphene can be also enhanced via decoration with monodisperse polymer beads. In dark conditions, the detection limit is improved from 1000 to 45 ppb after the application of polystyrene (PS) beads. With laser illumination, a detection limit of 0.5 ppb is determined. The enhanced gas sensing is due to surface plasmon polaritons excited by interference and charge transfer between the PS beads. This method opens an interesting route for the application of graphene in gas sensing.",

author = "Haifeng Fei and Gang Wu and Cheng, {Wei Ying} and Wenjie Yan and Hongjun Xu and Duan Zhang and Yanfeng Zhao and Yanhui Lv and Yanhui Chen and Lei Zhang and {{\'O} Coile{\'a}in}, Cormac and Chenglin Heng and Chang, {Ching Ray} and Wu, {Han Chun}",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

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day = "21",

doi = "10.1021/acsomega.8b03540",

language = "English",

volume = "4",

pages = "3812--3819",

journal = "ACS Omega",

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Fei, H, Wu, G, Cheng, WY, Yan, W, Xu, H, Zhang, D, Zhao, Y, Lv, Y, Chen, Y, Zhang, L, Ó Coileáin, C, Heng, C, Chang, CR & Wu, HC 2019, ' Enhanced NO ₂ Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration ', ACS Omega, vol. 4, no. 2, pp. 3812-3819. https://doi.org/10.1021/acsomega.8b03540

TY - JOUR

T1 - Enhanced NO 2 Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration

AU - Fei, Haifeng

AU - Wu, Gang

AU - Cheng, Wei Ying

AU - Yan, Wenjie

AU - Xu, Hongjun

AU - Zhang, Duan

AU - Zhao, Yanfeng

AU - Lv, Yanhui

AU - Chen, Yanhui

AU - Zhang, Lei

AU - Ó Coileáin, Cormac

AU - Heng, Chenglin

AU - Chang, Ching Ray

AU - Wu, Han Chun

PY - 2019/2/21

Y1 - 2019/2/21

N2 - Graphene is a single layer of carbon atoms with a large surface-to-volume ratio, providing a large capacity gas molecule adsorption and a strong surface sensitivity. Chemical vapor deposition-grown graphene-based NO 2 gas sensors typically have detection limits from 100 parts per billion (ppb) to a few parts per million (ppm), with response times over 1000 s. Numerous methods have been proposed to enhance the NO 2 sensing ability of graphenes. Among them, surface decoration with metal particles and metal-oxide particles has demonstrated the potential to enhance the gas-sensing properties. Here, we show that the NO 2 sensing of graphene can be also enhanced via decoration with monodisperse polymer beads. In dark conditions, the detection limit is improved from 1000 to 45 ppb after the application of polystyrene (PS) beads. With laser illumination, a detection limit of 0.5 ppb is determined. The enhanced gas sensing is due to surface plasmon polaritons excited by interference and charge transfer between the PS beads. This method opens an interesting route for the application of graphene in gas sensing.

AB - Graphene is a single layer of carbon atoms with a large surface-to-volume ratio, providing a large capacity gas molecule adsorption and a strong surface sensitivity. Chemical vapor deposition-grown graphene-based NO 2 gas sensors typically have detection limits from 100 parts per billion (ppb) to a few parts per million (ppm), with response times over 1000 s. Numerous methods have been proposed to enhance the NO 2 sensing ability of graphenes. Among them, surface decoration with metal particles and metal-oxide particles has demonstrated the potential to enhance the gas-sensing properties. Here, we show that the NO 2 sensing of graphene can be also enhanced via decoration with monodisperse polymer beads. In dark conditions, the detection limit is improved from 1000 to 45 ppb after the application of polystyrene (PS) beads. With laser illumination, a detection limit of 0.5 ppb is determined. The enhanced gas sensing is due to surface plasmon polaritons excited by interference and charge transfer between the PS beads. This method opens an interesting route for the application of graphene in gas sensing.

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U2 - 10.1021/acsomega.8b03540

DO - 10.1021/acsomega.8b03540

M3 - Article

AN - SCOPUS:85062094193

SN - 2470-1343

VL - 4

SP - 3812

EP - 3819

JO - ACS Omega

JF - ACS Omega

IS - 2

ER -

Enhanced NO ₂ Sensing at Room Temperature with Graphene via Monodisperse Polystyrene Bead Decoration

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