Enhanced sensing properties of Zn-doped MoO3 thin films developed using a nebulizer spray technique

V. Ganesh; I. S. Yahia

doi:10.1016/j.optmat.2023.114280

Enhanced sensing properties of Zn-doped MoO₃ thin films developed using a nebulizer spray technique

V. Ganesh
, I. S. Yahia

King Khalid University

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

5 Scopus citations

Abstract

Zn-doped Molybdenum trioxide (MoO₃:Zn) thin films were coated on glass substrates using a nebulizer spray pyrolysis technique to apply ammonia (NH₃) gas sensing. According to the structure examination, the crystallite size of the as-fabricated thin films is 64–77 nm. Field Emission Scanning Electron Microscopy (FESEM) images of the films confirm the formation of nanograins with islets-like shapes. In addition, Ultraviolet–Visible (UV–Vis) and photoluminescence (PL) studies were used to examine the samples optical bandgap and structural defects. Further, the MoO₃: Zn sample's gas-sensing properties for ammonia detection were assessed at ambient temperature. The observed gas response of the MoO₃:Zn3% sample was 20,900, and faster response and recovery times of 66s/9s. Furthermore, we observed that the MoO₃:Zn3% sensor had exceptional ammonia selectivity.

Original language	English
Article number	114280
Journal	Optical Materials
Volume	144
DOIs	https://doi.org/10.1016/j.optmat.2023.114280
State	Published - Oct 2023
Externally published	Yes

Keywords

Ammonia gas sensing
MoO thin film
Nebulizer spray technique
Zinc doped

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10.1016/j.optmat.2023.114280

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@article{435fb7ae6fa843dcbdebb5702091176b,

title = "Enhanced sensing properties of Zn-doped MoO3 thin films developed using a nebulizer spray technique",

abstract = "Zn-doped Molybdenum trioxide (MoO3:Zn) thin films were coated on glass substrates using a nebulizer spray pyrolysis technique to apply ammonia (NH3) gas sensing. According to the structure examination, the crystallite size of the as-fabricated thin films is 64–77 nm. Field Emission Scanning Electron Microscopy (FESEM) images of the films confirm the formation of nanograins with islets-like shapes. In addition, Ultraviolet–Visible (UV–Vis) and photoluminescence (PL) studies were used to examine the samples optical bandgap and structural defects. Further, the MoO3: Zn sample's gas-sensing properties for ammonia detection were assessed at ambient temperature. The observed gas response of the MoO3:Zn3\% sample was 20,900, and faster response and recovery times of 66s/9s. Furthermore, we observed that the MoO3:Zn3\% sensor had exceptional ammonia selectivity.",

keywords = "Ammonia gas sensing, MoO thin film, Nebulizer spray technique, Zinc doped",

author = "V. Ganesh and Yahia, \{I. S.\}",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier B.V.",

year = "2023",

month = oct,

doi = "10.1016/j.optmat.2023.114280",

language = "English",

volume = "144",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Enhanced sensing properties of Zn-doped MoO3 thin films developed using a nebulizer spray technique

AU - Ganesh, V.

AU - Yahia, I. S.

PY - 2023/10

Y1 - 2023/10

N2 - Zn-doped Molybdenum trioxide (MoO3:Zn) thin films were coated on glass substrates using a nebulizer spray pyrolysis technique to apply ammonia (NH3) gas sensing. According to the structure examination, the crystallite size of the as-fabricated thin films is 64–77 nm. Field Emission Scanning Electron Microscopy (FESEM) images of the films confirm the formation of nanograins with islets-like shapes. In addition, Ultraviolet–Visible (UV–Vis) and photoluminescence (PL) studies were used to examine the samples optical bandgap and structural defects. Further, the MoO3: Zn sample's gas-sensing properties for ammonia detection were assessed at ambient temperature. The observed gas response of the MoO3:Zn3% sample was 20,900, and faster response and recovery times of 66s/9s. Furthermore, we observed that the MoO3:Zn3% sensor had exceptional ammonia selectivity.

AB - Zn-doped Molybdenum trioxide (MoO3:Zn) thin films were coated on glass substrates using a nebulizer spray pyrolysis technique to apply ammonia (NH3) gas sensing. According to the structure examination, the crystallite size of the as-fabricated thin films is 64–77 nm. Field Emission Scanning Electron Microscopy (FESEM) images of the films confirm the formation of nanograins with islets-like shapes. In addition, Ultraviolet–Visible (UV–Vis) and photoluminescence (PL) studies were used to examine the samples optical bandgap and structural defects. Further, the MoO3: Zn sample's gas-sensing properties for ammonia detection were assessed at ambient temperature. The observed gas response of the MoO3:Zn3% sample was 20,900, and faster response and recovery times of 66s/9s. Furthermore, we observed that the MoO3:Zn3% sensor had exceptional ammonia selectivity.

KW - Ammonia gas sensing

KW - MoO thin film

KW - Nebulizer spray technique

KW - Zinc doped

UR - https://www.scopus.com/pages/publications/85170414945

U2 - 10.1016/j.optmat.2023.114280

DO - 10.1016/j.optmat.2023.114280

M3 - Article

AN - SCOPUS:85170414945

SN - 0925-3467

VL - 144

JO - Optical Materials

JF - Optical Materials

M1 - 114280

ER -

Enhanced sensing properties of Zn-doped MoO₃ thin films developed using a nebulizer spray technique

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Keywords

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