Hydrogen gas sensor of Pd-functionalised AlGaN/GaN heterostructure with high sensitivity and low-power consumption

J. H. Choi; M. G. Jo; S. W. Han; H. Kim; S. H. Kim; S. Jang; J. S. Kim; H. Y. Cha

doi:10.1049/el.2017.2107

Hydrogen gas sensor of Pd-functionalised AlGaN/GaN heterostructure with high sensitivity and low-power consumption

J. H. Choi, M. G. Jo, S. W. Han, H. Kim, S. H. Kim, S. Jang, J. S. Kim, H. Y. Cha

Department of Materials Science and Engineering

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

13 Scopus citations

Abstract

A Pd-functionalised hydrogen gas sensor based on an AlGaN/GaN heterostruture platform was investigated. The optimum bias voltage and reaction temperature were 0.1 V and 200°C, respectively, with which a wide range of hydrogen concentration from 0.1-4% in the air (i.e. 1000-40,000 ppm) was detectable. Not only low-power consumption but also high sensitivity with fast response was achieved due to the excellent properties of the AlGaN/GaN heterostructure platform. The sensitivity was 72.8% with a response time of ∼3 s in 4% hydrogen concentration.

Original language	English
Pages (from-to)	1200-1202
Number of pages	3
Journal	Electronics Letters
Volume	53
Issue number	17
DOIs	https://doi.org/10.1049/el.2017.2107
State	Published - 17 Aug 2017

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title = "Hydrogen gas sensor of Pd-functionalised AlGaN/GaN heterostructure with high sensitivity and low-power consumption",

abstract = "A Pd-functionalised hydrogen gas sensor based on an AlGaN/GaN heterostruture platform was investigated. The optimum bias voltage and reaction temperature were 0.1 V and 200°C, respectively, with which a wide range of hydrogen concentration from 0.1-4% in the air (i.e. 1000-40,000 ppm) was detectable. Not only low-power consumption but also high sensitivity with fast response was achieved due to the excellent properties of the AlGaN/GaN heterostructure platform. The sensitivity was 72.8% with a response time of ∼3 s in 4% hydrogen concentration.",

author = "Choi, {J. H.} and Jo, {M. G.} and Han, {S. W.} and H. Kim and Kim, {S. H.} and S. Jang and Kim, {J. S.} and Cha, {H. Y.}",

note = "Publisher Copyright: {\textcopyright} 2017 The Institution of Engineering and Technology.",

year = "2017",

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doi = "10.1049/el.2017.2107",

language = "English",

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T1 - Hydrogen gas sensor of Pd-functionalised AlGaN/GaN heterostructure with high sensitivity and low-power consumption

AU - Choi, J. H.

AU - Jo, M. G.

AU - Han, S. W.

AU - Kim, H.

AU - Kim, S. H.

AU - Jang, S.

AU - Kim, J. S.

AU - Cha, H. Y.

PY - 2017/8/17

Y1 - 2017/8/17

N2 - A Pd-functionalised hydrogen gas sensor based on an AlGaN/GaN heterostruture platform was investigated. The optimum bias voltage and reaction temperature were 0.1 V and 200°C, respectively, with which a wide range of hydrogen concentration from 0.1-4% in the air (i.e. 1000-40,000 ppm) was detectable. Not only low-power consumption but also high sensitivity with fast response was achieved due to the excellent properties of the AlGaN/GaN heterostructure platform. The sensitivity was 72.8% with a response time of ∼3 s in 4% hydrogen concentration.

AB - A Pd-functionalised hydrogen gas sensor based on an AlGaN/GaN heterostruture platform was investigated. The optimum bias voltage and reaction temperature were 0.1 V and 200°C, respectively, with which a wide range of hydrogen concentration from 0.1-4% in the air (i.e. 1000-40,000 ppm) was detectable. Not only low-power consumption but also high sensitivity with fast response was achieved due to the excellent properties of the AlGaN/GaN heterostructure platform. The sensitivity was 72.8% with a response time of ∼3 s in 4% hydrogen concentration.

UR - http://www.scopus.com/inward/record.url?scp=85028774188&partnerID=8YFLogxK

U2 - 10.1049/el.2017.2107

DO - 10.1049/el.2017.2107

M3 - Article

AN - SCOPUS:85028774188

SN - 0013-5194

VL - 53

SP - 1200

EP - 1202

JO - Electronics Letters

JF - Electronics Letters

IS - 17

ER -

Hydrogen gas sensor of Pd-functionalised AlGaN/GaN heterostructure with high sensitivity and low-power consumption

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