Surface composite and morphology tuning of tungsten oxide thin films for acetone gas sensing

Q. A. Drmosh; N. A. Al-Muhaish; Yousif Ahmed Al Wajih; Mir Waqas Alam; Z. H. Yamani

doi:10.1016/j.cplett.2021.138659

Surface composite and morphology tuning of tungsten oxide thin films for acetone gas sensing

Q. A. Drmosh^*, N. A. Al-Muhaish, Yousif Ahmed Al Wajih, Mir Waqas Alam, Z. H. Yamani

^*Corresponding author for this work

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

13 Scopus citations

Abstract

In this work, different morphologies of tungsten oxide films were fabricated by DC sputtering, with subsequent post-annealing treatment at different temperatures for acetone detection. The effect of post-annealing treatment of tungsten oxide films on their composition, surface morphology, structure, and chemiresistive acetone gas sensing properties was thoroughly investigated. The sensing characteristics of the fabricated sensors are modified by the post-annealing treatment due to the change of the surface morphology and chemical composition of the films. The sensor prepared at 700 °C annealing temperature (WO_2.83) has higher sensitivity towards acetone; as well, it has more rapid response and recovery times.

Original language	English
Article number	138659
Journal	Chemical Physics Letters
Volume	776
DOIs	https://doi.org/10.1016/j.cplett.2021.138659
State	Published - Aug 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier B.V.

Keywords

Acetone
Gas sensor
Surface-modification
Thin film
Tungsten oxide

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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title = "Surface composite and morphology tuning of tungsten oxide thin films for acetone gas sensing",

abstract = "In this work, different morphologies of tungsten oxide films were fabricated by DC sputtering, with subsequent post-annealing treatment at different temperatures for acetone detection. The effect of post-annealing treatment of tungsten oxide films on their composition, surface morphology, structure, and chemiresistive acetone gas sensing properties was thoroughly investigated. The sensing characteristics of the fabricated sensors are modified by the post-annealing treatment due to the change of the surface morphology and chemical composition of the films. The sensor prepared at 700 °C annealing temperature (WO2.83) has higher sensitivity towards acetone; as well, it has more rapid response and recovery times.",

keywords = "Acetone, Gas sensor, Surface-modification, Thin film, Tungsten oxide",

author = "Drmosh, {Q. A.} and Al-Muhaish, {N. A.} and {Al Wajih}, {Yousif Ahmed} and Alam, {Mir Waqas} and Yamani, {Z. H.}",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = aug,

doi = "10.1016/j.cplett.2021.138659",

language = "English",

volume = "776",

journal = "Chemical Physics Letters",

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T1 - Surface composite and morphology tuning of tungsten oxide thin films for acetone gas sensing

AU - Drmosh, Q. A.

AU - Al-Muhaish, N. A.

AU - Al Wajih, Yousif Ahmed

AU - Alam, Mir Waqas

AU - Yamani, Z. H.

PY - 2021/8

Y1 - 2021/8

N2 - In this work, different morphologies of tungsten oxide films were fabricated by DC sputtering, with subsequent post-annealing treatment at different temperatures for acetone detection. The effect of post-annealing treatment of tungsten oxide films on their composition, surface morphology, structure, and chemiresistive acetone gas sensing properties was thoroughly investigated. The sensing characteristics of the fabricated sensors are modified by the post-annealing treatment due to the change of the surface morphology and chemical composition of the films. The sensor prepared at 700 °C annealing temperature (WO2.83) has higher sensitivity towards acetone; as well, it has more rapid response and recovery times.

AB - In this work, different morphologies of tungsten oxide films were fabricated by DC sputtering, with subsequent post-annealing treatment at different temperatures for acetone detection. The effect of post-annealing treatment of tungsten oxide films on their composition, surface morphology, structure, and chemiresistive acetone gas sensing properties was thoroughly investigated. The sensing characteristics of the fabricated sensors are modified by the post-annealing treatment due to the change of the surface morphology and chemical composition of the films. The sensor prepared at 700 °C annealing temperature (WO2.83) has higher sensitivity towards acetone; as well, it has more rapid response and recovery times.

KW - Acetone

KW - Gas sensor

KW - Surface-modification

KW - Thin film

KW - Tungsten oxide

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DO - 10.1016/j.cplett.2021.138659

M3 - Article

AN - SCOPUS:85105311543

SN - 0009-2614

VL - 776

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 138659

ER -

Surface composite and morphology tuning of tungsten oxide thin films for acetone gas sensing

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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