Highly sensitive hydrogen sensors: Pd-coated Si nanowire arrays for detection of dissolved hydrogen in oil

Byungjin Jang; Min Hyung Kim; Jisun Baek; Wonkung Kim; Wooyoung Lee

doi:10.1016/j.snb.2018.06.111

Highly sensitive hydrogen sensors: Pd-coated Si nanowire arrays for detection of dissolved hydrogen in oil

Byungjin Jang, Min Hyung Kim, Jisun Baek, Wonkung Kim, Wooyoung Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

We studied the H₂ sensing properties of Pd nanoparticles on vertical standing Si nanowire (NW) arrays for the detection of dissolved hydrogen (H₂) gas in transformer oil. The Pd-coated Si NW arrays were fabricated by using the aqueous electroless etching method and sputtering. The Pd-coated Si NW arrays were immersed and measured in transformer oil with various dissolved concentrations of H₂. We found that Pd-coated Si NW arrays showed significantly superior performance with regard to the response (∼1000%), the lowest detection limit (1 ppm), and the response time (600 s). The Pd-coated Si NW arrays showed a temperature coefficient of resistance (TCR) of 6.53 × 10⁻³ °C^-1 at various oil temperatures (20–80 °C). Pd-coated Si NW arrays showed good reliability for the detection of H₂ in oil at room temperature (20 °C), with nearly the same initial resistance for 30 days.

Original language	English
Pages (from-to)	809-814
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	273
DOIs	https://doi.org/10.1016/j.snb.2018.06.111
Publication status	Published - 2018 Nov 10

Bibliographical note

Funding Information:
This work was supported by the Korean government (MSIT) ( 2017R1A2A1A17069528 ), and the Basic Science Research Program ( 2017M3A9F1052297 ), and the Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF) .

Funding Information:
This work was supported by the Korean government (MSIT) (2017R1A2A1A17069528), and the Basic Science Research Program (2017M3A9F1052297), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation of Korea (NRF).

Publisher Copyright:
© 2018 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2018.06.111

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title = "Highly sensitive hydrogen sensors: Pd-coated Si nanowire arrays for detection of dissolved hydrogen in oil",

abstract = "We studied the H2 sensing properties of Pd nanoparticles on vertical standing Si nanowire (NW) arrays for the detection of dissolved hydrogen (H2) gas in transformer oil. The Pd-coated Si NW arrays were fabricated by using the aqueous electroless etching method and sputtering. The Pd-coated Si NW arrays were immersed and measured in transformer oil with various dissolved concentrations of H2. We found that Pd-coated Si NW arrays showed significantly superior performance with regard to the response (∼1000%), the lowest detection limit (1 ppm), and the response time (600 s). The Pd-coated Si NW arrays showed a temperature coefficient of resistance (TCR) of 6.53 × 10−3 °C-1 at various oil temperatures (20–80 °C). Pd-coated Si NW arrays showed good reliability for the detection of H2 in oil at room temperature (20 °C), with nearly the same initial resistance for 30 days.",

author = "Byungjin Jang and Kim, {Min Hyung} and Jisun Baek and Wonkung Kim and Wooyoung Lee",

note = "Funding Information: This work was supported by the Korean government (MSIT) ( 2017R1A2A1A17069528 ), and the Basic Science Research Program ( 2017M3A9F1052297 ), and the Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF) . Funding Information: This work was supported by the Korean government (MSIT) (2017R1A2A1A17069528), and the Basic Science Research Program (2017M3A9F1052297), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation of Korea (NRF). Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

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AU - Lee, Wooyoung

N1 - Funding Information: This work was supported by the Korean government (MSIT) ( 2017R1A2A1A17069528 ), and the Basic Science Research Program ( 2017M3A9F1052297 ), and the Priority Research Centers Program ( 2009-0093823 ) through the National Research Foundation of Korea (NRF) . Funding Information: This work was supported by the Korean government (MSIT) (2017R1A2A1A17069528), and the Basic Science Research Program (2017M3A9F1052297), and the Priority Research Centers Program (2009-0093823) through the National Research Foundation of Korea (NRF). Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/11/10

Y1 - 2018/11/10

N2 - We studied the H2 sensing properties of Pd nanoparticles on vertical standing Si nanowire (NW) arrays for the detection of dissolved hydrogen (H2) gas in transformer oil. The Pd-coated Si NW arrays were fabricated by using the aqueous electroless etching method and sputtering. The Pd-coated Si NW arrays were immersed and measured in transformer oil with various dissolved concentrations of H2. We found that Pd-coated Si NW arrays showed significantly superior performance with regard to the response (∼1000%), the lowest detection limit (1 ppm), and the response time (600 s). The Pd-coated Si NW arrays showed a temperature coefficient of resistance (TCR) of 6.53 × 10−3 °C-1 at various oil temperatures (20–80 °C). Pd-coated Si NW arrays showed good reliability for the detection of H2 in oil at room temperature (20 °C), with nearly the same initial resistance for 30 days.

AB - We studied the H2 sensing properties of Pd nanoparticles on vertical standing Si nanowire (NW) arrays for the detection of dissolved hydrogen (H2) gas in transformer oil. The Pd-coated Si NW arrays were fabricated by using the aqueous electroless etching method and sputtering. The Pd-coated Si NW arrays were immersed and measured in transformer oil with various dissolved concentrations of H2. We found that Pd-coated Si NW arrays showed significantly superior performance with regard to the response (∼1000%), the lowest detection limit (1 ppm), and the response time (600 s). The Pd-coated Si NW arrays showed a temperature coefficient of resistance (TCR) of 6.53 × 10−3 °C-1 at various oil temperatures (20–80 °C). Pd-coated Si NW arrays showed good reliability for the detection of H2 in oil at room temperature (20 °C), with nearly the same initial resistance for 30 days.

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Highly sensitive hydrogen sensors: Pd-coated Si nanowire arrays for detection of dissolved hydrogen in oil

Abstract

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