Acetone-sensing properties of doped ZnO nanoparticles for breath-analyzer applications

Ran Yoo; Yunji Park; Hwaebong Jung; Hyun Jun Rim; Sungmee Cho; Hyun Sook Lee; Wooyoung Lee

doi:10.1016/j.jallcom.2019.06.254

Acetone-sensing properties of doped ZnO nanoparticles for breath-analyzer applications

Ran Yoo, Yunji Park, Hwaebong Jung, Hyun Jun Rim, Sungmee Cho, Hyun Sook Lee, Wooyoung Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

We report the effects of various dopants (Al, Co, and Cu) on the acetone-sensing properties of ZnO nanoparticles (NPs) for breath-analyzer applications. Among the different sensing materials, the Al-doped ZnO NPs exhibited the highest sensitivity toward 1 ppm acetone, with a maximum response of 11.8 at 500 °C. This improved sensing performance was related to deep donor-level defects caused by double oxygen vacancies in the Al-doped ZnO NPs, as confirmed by photoluminescence spectra. Thus, Al was a more effective dopant than Cu and Co for enhancing the sensing properties of ZnO NPs for the detection of acetone. We achieved selective detection of 0.5 ppm acetone in air using the Al-doped ZnO NPs incorporated into a miniaturized gas chromatograph (GC). The results indicate that the miniaturized GC integrated with the Al-doped ZnO NPs can be utilized for an acetone breath analyzer.

Original language	English
Pages (from-to)	135-144
Number of pages	10
Journal	Journal of Alloys and Compounds
Volume	803
DOIs	https://doi.org/10.1016/j.jallcom.2019.06.254
Publication status	Published - 2019 Sep 30

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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Yoo, R., Park, Y., Jung, H., Rim, H. J., Cho, S., Lee, H. S., & Lee, W. (2019). Acetone-sensing properties of doped ZnO nanoparticles for breath-analyzer applications. Journal of Alloys and Compounds, 803, 135-144. https://doi.org/10.1016/j.jallcom.2019.06.254

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title = "Acetone-sensing properties of doped ZnO nanoparticles for breath-analyzer applications",

abstract = "We report the effects of various dopants (Al, Co, and Cu) on the acetone-sensing properties of ZnO nanoparticles (NPs) for breath-analyzer applications. Among the different sensing materials, the Al-doped ZnO NPs exhibited the highest sensitivity toward 1 ppm acetone, with a maximum response of 11.8 at 500 °C. This improved sensing performance was related to deep donor-level defects caused by double oxygen vacancies in the Al-doped ZnO NPs, as confirmed by photoluminescence spectra. Thus, Al was a more effective dopant than Cu and Co for enhancing the sensing properties of ZnO NPs for the detection of acetone. We achieved selective detection of 0.5 ppm acetone in air using the Al-doped ZnO NPs incorporated into a miniaturized gas chromatograph (GC). The results indicate that the miniaturized GC integrated with the Al-doped ZnO NPs can be utilized for an acetone breath analyzer.",

author = "Ran Yoo and Yunji Park and Hwaebong Jung and Rim, {Hyun Jun} and Sungmee Cho and Lee, {Hyun Sook} and Wooyoung Lee",

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AU - Yoo, Ran

AU - Park, Yunji

AU - Jung, Hwaebong

AU - Rim, Hyun Jun

AU - Cho, Sungmee

AU - Lee, Hyun Sook

AU - Lee, Wooyoung

PY - 2019/9/30

Y1 - 2019/9/30

N2 - We report the effects of various dopants (Al, Co, and Cu) on the acetone-sensing properties of ZnO nanoparticles (NPs) for breath-analyzer applications. Among the different sensing materials, the Al-doped ZnO NPs exhibited the highest sensitivity toward 1 ppm acetone, with a maximum response of 11.8 at 500 °C. This improved sensing performance was related to deep donor-level defects caused by double oxygen vacancies in the Al-doped ZnO NPs, as confirmed by photoluminescence spectra. Thus, Al was a more effective dopant than Cu and Co for enhancing the sensing properties of ZnO NPs for the detection of acetone. We achieved selective detection of 0.5 ppm acetone in air using the Al-doped ZnO NPs incorporated into a miniaturized gas chromatograph (GC). The results indicate that the miniaturized GC integrated with the Al-doped ZnO NPs can be utilized for an acetone breath analyzer.

AB - We report the effects of various dopants (Al, Co, and Cu) on the acetone-sensing properties of ZnO nanoparticles (NPs) for breath-analyzer applications. Among the different sensing materials, the Al-doped ZnO NPs exhibited the highest sensitivity toward 1 ppm acetone, with a maximum response of 11.8 at 500 °C. This improved sensing performance was related to deep donor-level defects caused by double oxygen vacancies in the Al-doped ZnO NPs, as confirmed by photoluminescence spectra. Thus, Al was a more effective dopant than Cu and Co for enhancing the sensing properties of ZnO NPs for the detection of acetone. We achieved selective detection of 0.5 ppm acetone in air using the Al-doped ZnO NPs incorporated into a miniaturized gas chromatograph (GC). The results indicate that the miniaturized GC integrated with the Al-doped ZnO NPs can be utilized for an acetone breath analyzer.

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