Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions

Research output: Chapter in Book/Conference paperConference paper

Abstract

We fabricated microchip-sized Hydrogen (H) gas sensor based on a thin film of Iron-Palladium (FePd) alloy and investigated its ferromagnetic resonance (FMR) response in ambient and H gas environments and at atmospheric pressure. The fabricated sensing FePd alloy layers were 30 nm thick and their composition was 52% Fe and 48% Pd. Broadband stripline FMR spectroscopy was used to study the magnetization dynamics as a function of the stripline width. A comparative study was conducted between the FMR response of the continuous film and the film of finite width. Our results suggest that a significant increase in the FMR response was recorded for the narrower width stripline (50μm) samples compared with the FMR response of continuous film samples. In addition, we observed that sample annealing in nitrogen environment enhanced the FMR response by a factor of two. Furthermore, a very strong FMR signal of 80 μV in amplitude was recorded for nitrogen-annealed samples which, according to our best knowledge, is the highest amplitude of the FMR response ever recorded for FePd films at reasonable microwave powers (10dBm). Such a significant enhancement in the FMR response is believed to be a step forward towards commercial availability of a magnetic H gas sensor.

Original languageEnglish
Title of host publication2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages19-21
Number of pages3
ISBN (Electronic)9781538695241
DOIs
Publication statusPublished - 14 May 2019
Event2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018 - Perth, Australia
Duration: 9 Dec 201813 Dec 2018

Publication series

Name2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018

Conference

Conference2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018
CountryAustralia
CityPerth
Period9/12/1813/12/18

Fingerprint

Magnetic films
Ferromagnetic resonance
magnetic films
ferromagnetic resonance
Chemical sensors
Hydrogen
augmentation
sensors
hydrogen
gases
Nitrogen
Palladium alloys
palladium alloys
nitrogen
iron alloys
Iron alloys
Atmospheric pressure
availability
Magnetization
atmospheric pressure

Cite this

Khan, S., Martyniuk, M., & Kostylev, M. (2019). Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions. In 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018 (pp. 19-21). [8715239] (2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/COMMAD.2018.8715239
Khan, Shahbaz ; Martyniuk, Mariusz ; Kostylev, Mikhail. / Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions. 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018. IEEE, Institute of Electrical and Electronics Engineers, 2019. pp. 19-21 (2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018).
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title = "Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions",
abstract = "We fabricated microchip-sized Hydrogen (H) gas sensor based on a thin film of Iron-Palladium (FePd) alloy and investigated its ferromagnetic resonance (FMR) response in ambient and H gas environments and at atmospheric pressure. The fabricated sensing FePd alloy layers were 30 nm thick and their composition was 52{\%} Fe and 48{\%} Pd. Broadband stripline FMR spectroscopy was used to study the magnetization dynamics as a function of the stripline width. A comparative study was conducted between the FMR response of the continuous film and the film of finite width. Our results suggest that a significant increase in the FMR response was recorded for the narrower width stripline (50μm) samples compared with the FMR response of continuous film samples. In addition, we observed that sample annealing in nitrogen environment enhanced the FMR response by a factor of two. Furthermore, a very strong FMR signal of 80 μV in amplitude was recorded for nitrogen-annealed samples which, according to our best knowledge, is the highest amplitude of the FMR response ever recorded for FePd films at reasonable microwave powers (10dBm). Such a significant enhancement in the FMR response is believed to be a step forward towards commercial availability of a magnetic H gas sensor.",
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Khan, S, Martyniuk, M & Kostylev, M 2019, Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions. in 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018., 8715239, 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018, IEEE, Institute of Electrical and Electronics Engineers, pp. 19-21, 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018, Perth, Australia, 9/12/18. https://doi.org/10.1109/COMMAD.2018.8715239

Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions. / Khan, Shahbaz; Martyniuk, Mariusz; Kostylev, Mikhail.

2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018. IEEE, Institute of Electrical and Electronics Engineers, 2019. p. 19-21 8715239 (2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018).

Research output: Chapter in Book/Conference paperConference paper

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N2 - We fabricated microchip-sized Hydrogen (H) gas sensor based on a thin film of Iron-Palladium (FePd) alloy and investigated its ferromagnetic resonance (FMR) response in ambient and H gas environments and at atmospheric pressure. The fabricated sensing FePd alloy layers were 30 nm thick and their composition was 52% Fe and 48% Pd. Broadband stripline FMR spectroscopy was used to study the magnetization dynamics as a function of the stripline width. A comparative study was conducted between the FMR response of the continuous film and the film of finite width. Our results suggest that a significant increase in the FMR response was recorded for the narrower width stripline (50μm) samples compared with the FMR response of continuous film samples. In addition, we observed that sample annealing in nitrogen environment enhanced the FMR response by a factor of two. Furthermore, a very strong FMR signal of 80 μV in amplitude was recorded for nitrogen-annealed samples which, according to our best knowledge, is the highest amplitude of the FMR response ever recorded for FePd films at reasonable microwave powers (10dBm). Such a significant enhancement in the FMR response is believed to be a step forward towards commercial availability of a magnetic H gas sensor.

AB - We fabricated microchip-sized Hydrogen (H) gas sensor based on a thin film of Iron-Palladium (FePd) alloy and investigated its ferromagnetic resonance (FMR) response in ambient and H gas environments and at atmospheric pressure. The fabricated sensing FePd alloy layers were 30 nm thick and their composition was 52% Fe and 48% Pd. Broadband stripline FMR spectroscopy was used to study the magnetization dynamics as a function of the stripline width. A comparative study was conducted between the FMR response of the continuous film and the film of finite width. Our results suggest that a significant increase in the FMR response was recorded for the narrower width stripline (50μm) samples compared with the FMR response of continuous film samples. In addition, we observed that sample annealing in nitrogen environment enhanced the FMR response by a factor of two. Furthermore, a very strong FMR signal of 80 μV in amplitude was recorded for nitrogen-annealed samples which, according to our best knowledge, is the highest amplitude of the FMR response ever recorded for FePd films at reasonable microwave powers (10dBm). Such a significant enhancement in the FMR response is believed to be a step forward towards commercial availability of a magnetic H gas sensor.

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BT - 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018

PB - IEEE, Institute of Electrical and Electronics Engineers

ER -

Khan S, Martyniuk M, Kostylev M. Response enhancement of a magnetic-film based hydrogen gas sensor using size reduction to microchip dimensions. In 2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018. IEEE, Institute of Electrical and Electronics Engineers. 2019. p. 19-21. 8715239. (2018 Conference on Optoelectronic and Microelectronic Materials and Devices, COMMAD 2018). https://doi.org/10.1109/COMMAD.2018.8715239