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Prototype edge-grow...
Prototype edge-grown nanowire sensor array for the real-time monitoring and classification of multiple gases
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Thai, Nguyen Xuan (author)
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Duy, Nguyen Van (author)
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Hung, Chu Manh (author)
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- Nguyen, Hugo, 1955- (author)
- Uppsala universitet,Mikrosystemteknik
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- Tonezzer, Matteo (author)
- IMEM CNR, Sede Trento FBK, Via Alla Cascata 56-C, I-38123 Povo, TN, Italy.;Univ Trento, Via Calepina 14, I-38122 Trento, Italy.
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Hieu, Nguyen Van (author)
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Hoa, Nguyen Duc (author)
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(creator_code:org_t)
- VIETNAM NATL UNIV, 2020
- 2020
- English.
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In: JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES. - : VIETNAM NATL UNIV. - 2468-2284 .- 2468-2179. ; 5:3, s. 409-416
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The monitoring and classification of different gases using a single resistive semiconductor sensor are challenging because of the similar response characteristics. An array of separated sensors can be used as an electronic nose, but such arrays have a bulky structure and complex fabrication processes. Herein, we easily fabricated a gas-sensor array based on edge-grown SnO2 nanowires for the real-time monitoring and classification of multiple gases. The array comprised four sensors and was designed on a glass substrate. SnO2 nanowires were grown on-chip from the edge of electrodes, made contact together, and acted as sensing elements. This method was advantageous over the post-synthesis technique because the SnO2 nanowires were directly grown from the edge of the electrodes rather than on the surface. Accordingly, damage to the electrode was avoided by alloying Sn with Pt at a high growth temperature. The sensing characteristics of the sensor array were further examined for different gases, including methanol, isopropanol, ethanol, ammonia, hydrogen sulphide and hydrogen. Radar plots were used to improve the selective detection of different gases and enable effective classification. (C) 2020 The Authors. Publishing services by Elsevier B.V. on behalf of Vietnam National University, Hanoi.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Edge-grown SnO2 nanowires
- Gas sensors
- Gas classification
Publication and Content Type
- ref (subject category)
- art (subject category)
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