Investigation of influence of hydrogen gas on Pd/BST/Pt device by impedance spectroscopy

Jie Deng; Ooi Kiang Tan; Weiguang Zhu; Xiaofeng Chen; Xi Yao

doi:10.1109/TUFFC.2004.1324395

Investigation of influence of hydrogen gas on Pd/BST/Pt device by impedance spectroscopy

Jie Deng^*, Ooi Kiang Tan, Weiguang Zhu, Xiaofeng Chen, Xi Yao

^*Corresponding author for this work

Nanyang Technological University

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

6 Citations (Scopus)

Abstract

A new application using barium strontium titanate (BST) thin films to fabricate the Pd/BST/Pt heterostructure for hydrogen gas detection has been investigated. To further understand the mechanism of this novel hydrogen sensing properties, impedance spectroscopy of the Pd/BST/Pt has been systematically studied and interpreted satisfactorily based on an equivalent circuit model. The alternate current (AC) electrical data of the extracted parameters and the properties of dielectric permittivity are discussed. The influence of hydrogen on the impedance spectra demonstrates that the charges induced by hydrogen ions mainly occur at the Interface rather than in the bulk of the film. These experimental results provide clear evidence for the hydrogen sensing mechanism in the Pd/BST/Pt capacitive device.

Original language	English
Pages (from-to)	923-928
Number of pages	6
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	51
Issue number	8
DOIs	https://doi.org/10.1109/TUFFC.2004.1324395
Publication status	Published - Aug 2004
Externally published	Yes

ASJC Scopus Subject Areas

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

Access to Document

10.1109/TUFFC.2004.1324395

Cite this

@article{daf456ec53d74160a36679b8134ad921,

title = "Investigation of influence of hydrogen gas on Pd/BST/Pt device by impedance spectroscopy",

abstract = "A new application using barium strontium titanate (BST) thin films to fabricate the Pd/BST/Pt heterostructure for hydrogen gas detection has been investigated. To further understand the mechanism of this novel hydrogen sensing properties, impedance spectroscopy of the Pd/BST/Pt has been systematically studied and interpreted satisfactorily based on an equivalent circuit model. The alternate current (AC) electrical data of the extracted parameters and the properties of dielectric permittivity are discussed. The influence of hydrogen on the impedance spectra demonstrates that the charges induced by hydrogen ions mainly occur at the Interface rather than in the bulk of the film. These experimental results provide clear evidence for the hydrogen sensing mechanism in the Pd/BST/Pt capacitive device.",

author = "Jie Deng and Tan, {Ooi Kiang} and Weiguang Zhu and Xiaofeng Chen and Xi Yao",

year = "2004",

month = aug,

doi = "10.1109/TUFFC.2004.1324395",

language = "English",

volume = "51",

pages = "923--928",

journal = "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control",

issn = "0885-3010",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "8",

}

TY - JOUR

T1 - Investigation of influence of hydrogen gas on Pd/BST/Pt device by impedance spectroscopy

AU - Deng, Jie

AU - Tan, Ooi Kiang

AU - Zhu, Weiguang

AU - Chen, Xiaofeng

AU - Yao, Xi

PY - 2004/8

Y1 - 2004/8

N2 - A new application using barium strontium titanate (BST) thin films to fabricate the Pd/BST/Pt heterostructure for hydrogen gas detection has been investigated. To further understand the mechanism of this novel hydrogen sensing properties, impedance spectroscopy of the Pd/BST/Pt has been systematically studied and interpreted satisfactorily based on an equivalent circuit model. The alternate current (AC) electrical data of the extracted parameters and the properties of dielectric permittivity are discussed. The influence of hydrogen on the impedance spectra demonstrates that the charges induced by hydrogen ions mainly occur at the Interface rather than in the bulk of the film. These experimental results provide clear evidence for the hydrogen sensing mechanism in the Pd/BST/Pt capacitive device.

AB - A new application using barium strontium titanate (BST) thin films to fabricate the Pd/BST/Pt heterostructure for hydrogen gas detection has been investigated. To further understand the mechanism of this novel hydrogen sensing properties, impedance spectroscopy of the Pd/BST/Pt has been systematically studied and interpreted satisfactorily based on an equivalent circuit model. The alternate current (AC) electrical data of the extracted parameters and the properties of dielectric permittivity are discussed. The influence of hydrogen on the impedance spectra demonstrates that the charges induced by hydrogen ions mainly occur at the Interface rather than in the bulk of the film. These experimental results provide clear evidence for the hydrogen sensing mechanism in the Pd/BST/Pt capacitive device.

UR - http://www.scopus.com/inward/record.url?scp=4043057165&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4043057165&partnerID=8YFLogxK

U2 - 10.1109/TUFFC.2004.1324395

DO - 10.1109/TUFFC.2004.1324395

M3 - Article

AN - SCOPUS:4043057165

SN - 0885-3010

VL - 51

SP - 923

EP - 928

JO - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

JF - IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

IS - 8

ER -

Investigation of influence of hydrogen gas on Pd/BST/Pt device by impedance spectroscopy

Abstract

ASJC Scopus Subject Areas

Access to Document

Other files and links

Fingerprint

Cite this