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Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature

Nitrogen doped ZnO (N-ZnO) chemiresistive gas sensor was fabricated to improve lower limit of detection (LLOD). N-ZnO was fabricated by mixing ZnO with urea using ball milling method followed by annealing. Both pure ZnO and N-ZnO possess porous morphology. N-ZnO sensor showed a more improved LLOD (2...

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Main Authors: Baharuddin, Aainaa Aqilah, Ang, Bee Chin, Haseeb, A. S. M. A., Wong, Yew Hoong
Format: Article
Published: Elsevier 2021
Subjects:
TJ Mechanical engineering and machinery
TP Chemical technology
Online Access:http://eprints.um.edu.my/26510/
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spelling my.um.eprints.265102022-03-09T07:37:40Z http://eprints.um.edu.my/26510/ Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature Baharuddin, Aainaa Aqilah Ang, Bee Chin Haseeb, A. S. M. A. Wong, Yew Hoong TJ Mechanical engineering and machinery TP Chemical technology Nitrogen doped ZnO (N-ZnO) chemiresistive gas sensor was fabricated to improve lower limit of detection (LLOD). N-ZnO was fabricated by mixing ZnO with urea using ball milling method followed by annealing. Both pure ZnO and N-ZnO possess porous morphology. N-ZnO sensor showed a more improved LLOD (20 ppm) toward acetone and ethanol compared to the pure ZnO (LLOD = 1000 ppm) at 150 degrees C which is the lower limit of working temperature for both of the samples. A new understanding on interchangeable n-type and p-type behaviour of NZnO upon exposure to different acetone concentrations was also discussed in this paper. Elsevier 2021-11-15 Article PeerReviewed Baharuddin, Aainaa Aqilah and Ang, Bee Chin and Haseeb, A. S. M. A. and Wong, Yew Hoong (2021) Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature. Materials Letters, 303. ISSN 0167-577X, DOI https://doi.org/10.1016/j.matlet.2021.130562 <https://doi.org/10.1016/j.matlet.2021.130562>. 10.1016/j.matlet.2021.130562
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TJ Mechanical engineering and machinery
TP Chemical technology
spellingShingle TJ Mechanical engineering and machinery
TP Chemical technology
Baharuddin, Aainaa Aqilah
Ang, Bee Chin
Haseeb, A. S. M. A.
Wong, Yew Hoong
Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
description Nitrogen doped ZnO (N-ZnO) chemiresistive gas sensor was fabricated to improve lower limit of detection (LLOD). N-ZnO was fabricated by mixing ZnO with urea using ball milling method followed by annealing. Both pure ZnO and N-ZnO possess porous morphology. N-ZnO sensor showed a more improved LLOD (20 ppm) toward acetone and ethanol compared to the pure ZnO (LLOD = 1000 ppm) at 150 degrees C which is the lower limit of working temperature for both of the samples. A new understanding on interchangeable n-type and p-type behaviour of NZnO upon exposure to different acetone concentrations was also discussed in this paper.
format Article
author Baharuddin, Aainaa Aqilah
Ang, Bee Chin
Haseeb, A. S. M. A.
Wong, Yew Hoong
author_facet Baharuddin, Aainaa Aqilah
Ang, Bee Chin
Haseeb, A. S. M. A.
Wong, Yew Hoong
author_sort Baharuddin, Aainaa Aqilah
title Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
title_short Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
title_full Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
title_fullStr Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
title_full_unstemmed Improvement of N-ZnO chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
title_sort improvement of n-zno chemiresistive gas sensor toward lower detection limit of acetone and ethanol at low operating temperature
publisher Elsevier
publishDate 2021
url http://eprints.um.edu.my/26510/
_version_ 1735409421749583872
score 13.201949

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