Methodical tuning of NH3 gas sensing in WO3 thin films by electron beam irradiation

Anusha; Priyanka Kumari; Aninamol Ani; P. Poornesh; Saikat Chattopadhyay; Vikash Chandra Petwal; Vijay Pal Verma; Jishnu Dwivedi

doi:10.1007/s10854-024-12065-x

Methodical tuning of NH₃ gas sensing in WO₃ thin films by electron beam irradiation

Anusha
, Priyanka Kumari
, Aninamol Ani
, P. Poornesh^*
, Saikat Chattopadhyay
, Vikash Chandra Petwal
, Vijay Pal Verma
, Jishnu Dwivedi

^*Corresponding author for this work

Manipal Institute of Technology, Manipal

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

13 Citations (Scopus)

Abstract

The present work focuses on the structure, morphology, optical and sensing analysis of Electron Beam Irradiation (EBI) treated WO₃ films synthesized by the spray pyrolysis technique. X-ray diffraction (XRD) revealed a slight shift in the 2θ position, indicating stress generated due to EBI process. Scanning Electron Microscopy (SEM) morphographs presented well-defined grains at higher irradiation dosages. X-ray Photoelectron Spectroscopy (XPS) studies showed increased oxygen vacancy defects for the 5 kGy treated sample compared to unirradiated WO₃. Sensing analysis of unirradiated and EBI-treated films was conducted towards ammonia (NH₃) at an optimum operating temperature of 200 °C. Sensor response of 5 kGy treated film increased by − 4.5 fold compared to unirradiated film at 5 ppm NH₃ concentration. The current study demonstrates the importance of EBI in tailoring the NH₃ sensing properties of WO₃ films.

Original language	English
Article number	318
Journal	Journal of Materials Science: Materials in Electronics
Volume	35
Issue number	5
DOIs	https://doi.org/10.1007/s10854-024-12065-x
Publication status	Published - 02-2024

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1007/s10854-024-12065-x

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title = "Methodical tuning of NH3 gas sensing in WO3 thin films by electron beam irradiation",

abstract = "The present work focuses on the structure, morphology, optical and sensing analysis of Electron Beam Irradiation (EBI) treated WO3 films synthesized by the spray pyrolysis technique. X-ray diffraction (XRD) revealed a slight shift in the 2θ position, indicating stress generated due to EBI process. Scanning Electron Microscopy (SEM) morphographs presented well-defined grains at higher irradiation dosages. X-ray Photoelectron Spectroscopy (XPS) studies showed increased oxygen vacancy defects for the 5 kGy treated sample compared to unirradiated WO3. Sensing analysis of unirradiated and EBI-treated films was conducted towards ammonia (NH3) at an optimum operating temperature of 200 °C. Sensor response of 5 kGy treated film increased by − 4.5 fold compared to unirradiated film at 5 ppm NH3 concentration. The current study demonstrates the importance of EBI in tailoring the NH3 sensing properties of WO3 films.",

author = "Anusha and Priyanka Kumari and Aninamol Ani and P. Poornesh and Saikat Chattopadhyay and Petwal, \{Vikash Chandra\} and Verma, \{Vijay Pal\} and Jishnu Dwivedi",

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doi = "10.1007/s10854-024-12065-x",

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AU - Anusha,

AU - Kumari, Priyanka

AU - Ani, Aninamol

AU - Poornesh, P.

AU - Chattopadhyay, Saikat

AU - Petwal, Vikash Chandra

AU - Verma, Vijay Pal

AU - Dwivedi, Jishnu

PY - 2024/2

Y1 - 2024/2

N2 - The present work focuses on the structure, morphology, optical and sensing analysis of Electron Beam Irradiation (EBI) treated WO3 films synthesized by the spray pyrolysis technique. X-ray diffraction (XRD) revealed a slight shift in the 2θ position, indicating stress generated due to EBI process. Scanning Electron Microscopy (SEM) morphographs presented well-defined grains at higher irradiation dosages. X-ray Photoelectron Spectroscopy (XPS) studies showed increased oxygen vacancy defects for the 5 kGy treated sample compared to unirradiated WO3. Sensing analysis of unirradiated and EBI-treated films was conducted towards ammonia (NH3) at an optimum operating temperature of 200 °C. Sensor response of 5 kGy treated film increased by − 4.5 fold compared to unirradiated film at 5 ppm NH3 concentration. The current study demonstrates the importance of EBI in tailoring the NH3 sensing properties of WO3 films.

AB - The present work focuses on the structure, morphology, optical and sensing analysis of Electron Beam Irradiation (EBI) treated WO3 films synthesized by the spray pyrolysis technique. X-ray diffraction (XRD) revealed a slight shift in the 2θ position, indicating stress generated due to EBI process. Scanning Electron Microscopy (SEM) morphographs presented well-defined grains at higher irradiation dosages. X-ray Photoelectron Spectroscopy (XPS) studies showed increased oxygen vacancy defects for the 5 kGy treated sample compared to unirradiated WO3. Sensing analysis of unirradiated and EBI-treated films was conducted towards ammonia (NH3) at an optimum operating temperature of 200 °C. Sensor response of 5 kGy treated film increased by − 4.5 fold compared to unirradiated film at 5 ppm NH3 concentration. The current study demonstrates the importance of EBI in tailoring the NH3 sensing properties of WO3 films.

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JF - Journal of Materials Science: Materials in Electronics

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M1 - 318

ER -

Methodical tuning of NH₃ gas sensing in WO₃ thin films by electron beam irradiation

Abstract

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