Characteristics of Pd/BST/Pt for hydrogen detection at different atmospheres

J. Deng; W. Zhu; O. K. Tan; X. F. Chen; X. Yao

doi:10.1080/00150190108225196

Characteristics of Pd/BST/Pt for hydrogen detection at different atmospheres

J. Deng^*, W. Zhu, O. K. Tan, X. F. Chen, X. Yao

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

A new application of using barium strontium titanate (BST) thin films to fabricate the metal/ferroelectric/metal (MFM) heterostructure for hydrogen gas detection has been investigated. In this paper, the (Ba0.67Sr0.33)TiO3 thin films are prepared using the sol-gel technology. The steady-state hydrogen sensitivity and transient response with different hydrogen concentrations diluted in air and in nitrogen are carefully studied. Experimental results show that the sensitivity is larger, response time is faster, and recovery time is slower for hydrogen in nitrogen than those in air. This discrepancy is due to chemisorbed oxygen on the Pd surface in air. Our previously proposed interface blocking model as the main mechanism for this new type of hydrogen gas sensor using ferroelectric amorphous thin films is confirmed by the new experimental results.

Original language	English
Pages (from-to)	181-186
Number of pages	6
Journal	Ferroelectrics
Volume	263
Issue number	1
DOIs	https://doi.org/10.1080/00150190108225196
Publication status	Published - 2001
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Keywords

(Ba,Sr)TiO
ferroelectric
hydrogen gas sensor

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10.1080/00150190108225196

Cite this

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title = "Characteristics of Pd/BST/Pt for hydrogen detection at different atmospheres",

abstract = "A new application of using barium strontium titanate (BST) thin films to fabricate the metal/ferroelectric/metal (MFM) heterostructure for hydrogen gas detection has been investigated. In this paper, the (Ba0.67Sr0.33)TiO3 thin films are prepared using the sol-gel technology. The steady-state hydrogen sensitivity and transient response with different hydrogen concentrations diluted in air and in nitrogen are carefully studied. Experimental results show that the sensitivity is larger, response time is faster, and recovery time is slower for hydrogen in nitrogen than those in air. This discrepancy is due to chemisorbed oxygen on the Pd surface in air. Our previously proposed interface blocking model as the main mechanism for this new type of hydrogen gas sensor using ferroelectric amorphous thin films is confirmed by the new experimental results.",

keywords = "(Ba,Sr)TiO, ferroelectric, hydrogen gas sensor",

author = "J. Deng and W. Zhu and Tan, {O. K.} and Chen, {X. F.} and X. Yao",

year = "2001",

doi = "10.1080/00150190108225196",

language = "English",

volume = "263",

pages = "181--186",

journal = "Ferroelectrics",

issn = "0015-0193",

publisher = "Taylor and Francis Ltd.",

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TY - JOUR

T1 - Characteristics of Pd/BST/Pt for hydrogen detection at different atmospheres

AU - Deng, J.

AU - Zhu, W.

AU - Tan, O. K.

AU - Chen, X. F.

AU - Yao, X.

PY - 2001

Y1 - 2001

N2 - A new application of using barium strontium titanate (BST) thin films to fabricate the metal/ferroelectric/metal (MFM) heterostructure for hydrogen gas detection has been investigated. In this paper, the (Ba0.67Sr0.33)TiO3 thin films are prepared using the sol-gel technology. The steady-state hydrogen sensitivity and transient response with different hydrogen concentrations diluted in air and in nitrogen are carefully studied. Experimental results show that the sensitivity is larger, response time is faster, and recovery time is slower for hydrogen in nitrogen than those in air. This discrepancy is due to chemisorbed oxygen on the Pd surface in air. Our previously proposed interface blocking model as the main mechanism for this new type of hydrogen gas sensor using ferroelectric amorphous thin films is confirmed by the new experimental results.

AB - A new application of using barium strontium titanate (BST) thin films to fabricate the metal/ferroelectric/metal (MFM) heterostructure for hydrogen gas detection has been investigated. In this paper, the (Ba0.67Sr0.33)TiO3 thin films are prepared using the sol-gel technology. The steady-state hydrogen sensitivity and transient response with different hydrogen concentrations diluted in air and in nitrogen are carefully studied. Experimental results show that the sensitivity is larger, response time is faster, and recovery time is slower for hydrogen in nitrogen than those in air. This discrepancy is due to chemisorbed oxygen on the Pd surface in air. Our previously proposed interface blocking model as the main mechanism for this new type of hydrogen gas sensor using ferroelectric amorphous thin films is confirmed by the new experimental results.

KW - (Ba,Sr)TiO

KW - ferroelectric

KW - hydrogen gas sensor

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DO - 10.1080/00150190108225196

M3 - Article

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SN - 0015-0193

VL - 263

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EP - 186

JO - Ferroelectrics

JF - Ferroelectrics

IS - 1

ER -

Characteristics of Pd/BST/Pt for hydrogen detection at different atmospheres

Abstract

ASJC Scopus Subject Areas

Keywords

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