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Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles

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Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles. / Liu, Xiao; Sun, Ye; Yu, Miao; Yin, Yongqi; Du, Baosheng; Tang, Wei; Jiang, Tingting; Yang, Bin; Cao, Wenwu; Ashfold, Michael N.R.

In: Sensors and Actuators, B: Chemical, Vol. 255, 01.02.2018, p. 3384-3390.

Research output: Contribution to journalArticle

Harvard

Liu, X, Sun, Y, Yu, M, Yin, Y, Du, B, Tang, W, Jiang, T, Yang, B, Cao, W & Ashfold, MNR 2018, 'Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles', Sensors and Actuators, B: Chemical, vol. 255, pp. 3384-3390. https://doi.org/10.1016/j.snb.2017.09.165

APA

Liu, X., Sun, Y., Yu, M., Yin, Y., Du, B., Tang, W., ... Ashfold, M. N. R. (2018). Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles. Sensors and Actuators, B: Chemical, 255, 3384-3390. https://doi.org/10.1016/j.snb.2017.09.165

Vancouver

Liu X, Sun Y, Yu M, Yin Y, Du B, Tang W et al. Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles. Sensors and Actuators, B: Chemical. 2018 Feb 1;255:3384-3390. https://doi.org/10.1016/j.snb.2017.09.165

Author

Liu, Xiao ; Sun, Ye ; Yu, Miao ; Yin, Yongqi ; Du, Baosheng ; Tang, Wei ; Jiang, Tingting ; Yang, Bin ; Cao, Wenwu ; Ashfold, Michael N.R. / Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles. In: Sensors and Actuators, B: Chemical. 2018 ; Vol. 255. pp. 3384-3390.

Bibtex

@article{cde896e815a14dc88b1c94e7a2c33e38,
title = "Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles",
abstract = "Ultrathin two-dimensional ZnO nanosheets (NSs) with thicknesses of just a few nanometers have been fabricated by a solvothermal method. The very large surface area to volume ratio of this material translates into outstanding electrical sensing responses to ethanol (as high as S ∼ 97 to 200 ppm of ethanol at a working temperature of 320 °C). Decorating these ZnO NSs with CuO nanoparticles (NPs), by pulsed laser ablation of a CuO target at room temperature and then post-annealing at 400 °C, yields CuO-ZnO NSs that display a further up to 2-fold enhanced response to ethanol vapour, reduced sensor response and recovery times, high sensing repeatability and high selectivity. Mechanisms underpinning the enhanced sensing properties of the CuO-ZnO NSs are discussed in terms of CuO NP-induced p-n junction depletion regions and increases in the density of active sites for ethanol adsorption and for reaction with adsorbed oxygen species.",
keywords = "Copper oxide, Gas sensing, Nanosheet, p-n junction, Zinc oxide",
author = "Xiao Liu and Ye Sun and Miao Yu and Yongqi Yin and Baosheng Du and Wei Tang and Tingting Jiang and Bin Yang and Wenwu Cao and Ashfold, {Michael N.R.}",
year = "2018",
month = "2",
day = "1",
doi = "10.1016/j.snb.2017.09.165",
language = "English",
volume = "255",
pages = "3384--3390",
journal = "Sensors and Actuators B: Chemical",
issn = "0925-4005",
publisher = "Elsevier",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Enhanced ethanol sensing properties of ultrathin ZnO nanosheets decorated with CuO nanoparticles

AU - Liu, Xiao

AU - Sun, Ye

AU - Yu, Miao

AU - Yin, Yongqi

AU - Du, Baosheng

AU - Tang, Wei

AU - Jiang, Tingting

AU - Yang, Bin

AU - Cao, Wenwu

AU - Ashfold, Michael N.R.

PY - 2018/2/1

Y1 - 2018/2/1

N2 - Ultrathin two-dimensional ZnO nanosheets (NSs) with thicknesses of just a few nanometers have been fabricated by a solvothermal method. The very large surface area to volume ratio of this material translates into outstanding electrical sensing responses to ethanol (as high as S ∼ 97 to 200 ppm of ethanol at a working temperature of 320 °C). Decorating these ZnO NSs with CuO nanoparticles (NPs), by pulsed laser ablation of a CuO target at room temperature and then post-annealing at 400 °C, yields CuO-ZnO NSs that display a further up to 2-fold enhanced response to ethanol vapour, reduced sensor response and recovery times, high sensing repeatability and high selectivity. Mechanisms underpinning the enhanced sensing properties of the CuO-ZnO NSs are discussed in terms of CuO NP-induced p-n junction depletion regions and increases in the density of active sites for ethanol adsorption and for reaction with adsorbed oxygen species.

AB - Ultrathin two-dimensional ZnO nanosheets (NSs) with thicknesses of just a few nanometers have been fabricated by a solvothermal method. The very large surface area to volume ratio of this material translates into outstanding electrical sensing responses to ethanol (as high as S ∼ 97 to 200 ppm of ethanol at a working temperature of 320 °C). Decorating these ZnO NSs with CuO nanoparticles (NPs), by pulsed laser ablation of a CuO target at room temperature and then post-annealing at 400 °C, yields CuO-ZnO NSs that display a further up to 2-fold enhanced response to ethanol vapour, reduced sensor response and recovery times, high sensing repeatability and high selectivity. Mechanisms underpinning the enhanced sensing properties of the CuO-ZnO NSs are discussed in terms of CuO NP-induced p-n junction depletion regions and increases in the density of active sites for ethanol adsorption and for reaction with adsorbed oxygen species.

KW - Copper oxide

KW - Gas sensing

KW - Nanosheet

KW - p-n junction

KW - Zinc oxide

UR - http://www.scopus.com/inward/record.url?scp=85030570081&partnerID=8YFLogxK

U2 - 10.1016/j.snb.2017.09.165

DO - 10.1016/j.snb.2017.09.165

M3 - Article

VL - 255

SP - 3384

EP - 3390

JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

SN - 0925-4005

ER -