H2 gas sensor based on Pd/ZnO nanostructures deposited on tapered optical fiber

A novel H 2 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 pro...

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Main Authors: Mohd Yahya, Nor Akmar, Yusof Hamid, Mohd Rashid, Boon, Hoong Ong, Abdul Rahman, Norizah, Mahdi, Mohd Adzir
Format: Article
Language:English
Published: Institute of Electrical and Electronics Engineers 2020
Online Access:http://psasir.upm.edu.my/id/eprint/89142/
http://psasir.upm.edu.my/id/eprint/89142/1/ZINC.pdf
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author Mohd Yahya, Nor Akmar
Yusof Hamid, Mohd Rashid
Boon, Hoong Ong
Abdul Rahman, Norizah
Mahdi, Mohd Adzir
author_facet Mohd Yahya, Nor Akmar
Yusof Hamid, Mohd Rashid
Boon, Hoong Ong
Abdul Rahman, Norizah
Mahdi, Mohd Adzir
author_sort Mohd Yahya, Nor Akmar
building UPM Institutional Repository
collection Online Access
description A novel H 2 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 H 2 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 H 2 . The absorbance response of 280 nm thickness of annealed Pd/ZnO has increased 64% as compared to as-prepared Pd/ZnO upon 1% H 2 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 H 2 at 180°C as compared to other thicknesses investigated.
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institution Universiti Putra Malaysia
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spelling upm-891422021-09-04T00:16:09Z http://psasir.upm.edu.my/id/eprint/89142/ H2 gas sensor based on Pd/ZnO nanostructures deposited on tapered optical fiber Mohd Yahya, Nor Akmar Yusof Hamid, Mohd Rashid Boon, Hoong Ong Abdul Rahman, Norizah Mahdi, Mohd Adzir A novel H 2 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 H 2 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 H 2 . The absorbance response of 280 nm thickness of annealed Pd/ZnO has increased 64% as compared to as-prepared Pd/ZnO upon 1% H 2 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 H 2 at 180°C as compared to other thicknesses investigated. Institute of Electrical and Electronics Engineers 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/89142/1/ZINC.pdf Mohd Yahya, Nor Akmar and Yusof Hamid, Mohd Rashid and Boon, Hoong Ong and Abdul Rahman, Norizah and Mahdi, Mohd Adzir (2020) H2 gas sensor based on Pd/ZnO nanostructures deposited on tapered optical fiber. IEEE Sensors Journal, 20 (6). 2982 - 2990. ISSN 1530-437X https://ieeexplore.ieee.org/document/8924755 10.1109/JSEN.2019.2957838
spellingShingle Mohd Yahya, Nor Akmar
Yusof Hamid, Mohd Rashid
Boon, Hoong Ong
Abdul Rahman, Norizah
Mahdi, Mohd Adzir
H2 gas sensor based on Pd/ZnO nanostructures deposited on tapered optical fiber
title 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_short 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
url http://psasir.upm.edu.my/id/eprint/89142/
http://psasir.upm.edu.my/id/eprint/89142/
http://psasir.upm.edu.my/id/eprint/89142/
http://psasir.upm.edu.my/id/eprint/89142/1/ZINC.pdf