H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber

A novel H2 sensor using tapered optical fiber coated with Pd/ZnO nanostructures have been developed. The ZnO nanostructures was synthesized and deposited onto tapered optical fiber via chemical bath deposition (CBD) method. The ZnO was characterized by FESEM, XRD and EDX to confirm the material prop...

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Main Authors: Yahya, Nor Akmar Mohd, Hamid, Mohd Rashid Yusof, Ong, Boon Hoong, Rahman, Norizah Abdul, Mahdi, Mohd Adzir, Yaacob, Mohd Hanif
Format: Article
Published: Institute of Electrical and Electronics Engineers (IEEE) 2020
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Online Access:http://eprints.um.edu.my/24677/
https://doi.org/10.1109/JSEN.2019.2957838
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Institution: Universiti Malaya
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spelling my.um.eprints.246772020-06-05T03:07:29Z http://eprints.um.edu.my/24677/ H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber Yahya, Nor Akmar Mohd Hamid, Mohd Rashid Yusof Ong, Boon Hoong Rahman, Norizah Abdul Mahdi, Mohd Adzir Yaacob, Mohd Hanif QD Chemistry A novel H2 sensor using tapered optical fiber coated with Pd/ZnO nanostructures have been developed. The ZnO nanostructures was synthesized and deposited onto tapered optical fiber via chemical bath deposition (CBD) method. The ZnO was characterized by FESEM, XRD and EDX to confirm the material properties. It was discovered that the sensor is sensitive towards different concentrations of H2 in synthetic air at 180° C of operating temperature. By varying the deposition time of ZnO coating, different thickness of ZnO layer can be obtained. It was observed that with 280 nm thickness, the maximum absorbance response can be achieved. Further investigation with sensor sample of as-prepared and annealed was carried out to study its sensing performance towards H2. The absorbance response of 280 nm thickness of annealed Pd/ZnO has increased 64% as compared to as-prepared Pd/ZnO upon 1% H2 exposure in the synthetic air when measured in the visible to near infra-red optical wavelength. It can be concluded that the Pd/ZnO optical fiber sensor with thickness around 280 nm provided better sensitivity in sensing H2 at 180°C as compared to other thicknesses investigated. © 2001-2012 IEEE. Institute of Electrical and Electronics Engineers (IEEE) 2020 Article PeerReviewed Yahya, Nor Akmar Mohd and Hamid, Mohd Rashid Yusof and Ong, Boon Hoong and Rahman, Norizah Abdul and Mahdi, Mohd Adzir and Yaacob, Mohd Hanif (2020) H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber. IEEE Sensors Journal, 20 (6). pp. 2982-2990. ISSN 1530-437X https://doi.org/10.1109/JSEN.2019.2957838 doi:10.1109/JSEN.2019.2957838
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 QD Chemistry
spellingShingle QD Chemistry
Yahya, Nor Akmar Mohd
Hamid, Mohd Rashid Yusof
Ong, Boon Hoong
Rahman, Norizah Abdul
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
description A novel H2 sensor using tapered optical fiber coated with Pd/ZnO nanostructures have been developed. The ZnO nanostructures was synthesized and deposited onto tapered optical fiber via chemical bath deposition (CBD) method. The ZnO was characterized by FESEM, XRD and EDX to confirm the material properties. It was discovered that the sensor is sensitive towards different concentrations of H2 in synthetic air at 180° C of operating temperature. By varying the deposition time of ZnO coating, different thickness of ZnO layer can be obtained. It was observed that with 280 nm thickness, the maximum absorbance response can be achieved. Further investigation with sensor sample of as-prepared and annealed was carried out to study its sensing performance towards H2. The absorbance response of 280 nm thickness of annealed Pd/ZnO has increased 64% as compared to as-prepared Pd/ZnO upon 1% H2 exposure in the synthetic air when measured in the visible to near infra-red optical wavelength. It can be concluded that the Pd/ZnO optical fiber sensor with thickness around 280 nm provided better sensitivity in sensing H2 at 180°C as compared to other thicknesses investigated. © 2001-2012 IEEE.
format Article
author Yahya, Nor Akmar Mohd
Hamid, Mohd Rashid Yusof
Ong, Boon Hoong
Rahman, Norizah Abdul
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
author_facet Yahya, Nor Akmar Mohd
Hamid, Mohd Rashid Yusof
Ong, Boon Hoong
Rahman, Norizah Abdul
Mahdi, Mohd Adzir
Yaacob, Mohd Hanif
author_sort Yahya, Nor Akmar Mohd
title H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
title_short H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
title_full H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
title_fullStr H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
title_full_unstemmed H2 Gas Sensor Based on Pd/ZnO Nanostructures Deposited on Tapered Optical Fiber
title_sort h2 gas sensor based on pd/zno nanostructures deposited on tapered optical fiber
publisher Institute of Electrical and Electronics Engineers (IEEE)
publishDate 2020
url http://eprints.um.edu.my/24677/
https://doi.org/10.1109/JSEN.2019.2957838
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