Gold nanoparticles incorporated SnO2 thin film: highly responsive and selective detection of NO2 at room temperature

Q. A. Drmosh; Z. H. Yamani; A. K. Mohamedkhair; A. H.Y. Hendi; M. K. Hossain; Ahmed Ibrahim

doi:10.1016/j.matlet.2017.12.013

Gold nanoparticles incorporated SnO₂ thin film: highly responsive and selective detection of NO₂ at room temperature

Q. A. Drmosh^*, Z. H. Yamani, A. K. Mohamedkhair, A. H.Y. Hendi, M. K. Hossain, Ahmed Ibrahim

^*Corresponding author for this work

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

27 Scopus citations

Abstract

A facile and two-step procedure, sputtering followed by annealing, was adopted to achieve highly dispersed gold nanoparticles on SnO₂ film. Morphological observations revealed that the gold nanoparticles were uniformly dispersed over the surface of SnO₂ film. The transmittance and crystallinity of the as-fabricated film was found to improve substantially after the heat treatment. The suitability of the as-fabricated thin film for gas sensing was tested by detection of NO₂. The results showed high response, and selectivity towards NO₂. The response was about 90% to 50 ppm NO₂ at room temperature, which was 5.5 and 3.2 times higher than that of the gold layer loaded SnO₂, and pristine SnO₂ sensors, respectively.

Original language	English
Pages (from-to)	283-286
Number of pages	4
Journal	Materials Letters
Volume	214
DOIs	https://doi.org/10.1016/j.matlet.2017.12.013
State	Published - 1 Mar 2018

Bibliographical note

Publisher Copyright:
© 2017

Keywords

Au nanoparticles
Mechanism
NO sensor
Sputtering
Thin films
Tin oxide

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2017.12.013

Cite this

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title = "Gold nanoparticles incorporated SnO2 thin film: highly responsive and selective detection of NO2 at room temperature",

abstract = "A facile and two-step procedure, sputtering followed by annealing, was adopted to achieve highly dispersed gold nanoparticles on SnO2 film. Morphological observations revealed that the gold nanoparticles were uniformly dispersed over the surface of SnO2 film. The transmittance and crystallinity of the as-fabricated film was found to improve substantially after the heat treatment. The suitability of the as-fabricated thin film for gas sensing was tested by detection of NO2. The results showed high response, and selectivity towards NO2. The response was about 90\% to 50 ppm NO2 at room temperature, which was 5.5 and 3.2 times higher than that of the gold layer loaded SnO2, and pristine SnO2 sensors, respectively.",

keywords = "Au nanoparticles, Mechanism, NO sensor, Sputtering, Thin films, Tin oxide",

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year = "2018",

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doi = "10.1016/j.matlet.2017.12.013",

language = "English",

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T1 - Gold nanoparticles incorporated SnO2 thin film

T2 - highly responsive and selective detection of NO2 at room temperature

AU - Drmosh, Q. A.

AU - Yamani, Z. H.

AU - Mohamedkhair, A. K.

AU - Hendi, A. H.Y.

AU - Hossain, M. K.

AU - Ibrahim, Ahmed

PY - 2018/3/1

Y1 - 2018/3/1

N2 - A facile and two-step procedure, sputtering followed by annealing, was adopted to achieve highly dispersed gold nanoparticles on SnO2 film. Morphological observations revealed that the gold nanoparticles were uniformly dispersed over the surface of SnO2 film. The transmittance and crystallinity of the as-fabricated film was found to improve substantially after the heat treatment. The suitability of the as-fabricated thin film for gas sensing was tested by detection of NO2. The results showed high response, and selectivity towards NO2. The response was about 90% to 50 ppm NO2 at room temperature, which was 5.5 and 3.2 times higher than that of the gold layer loaded SnO2, and pristine SnO2 sensors, respectively.

AB - A facile and two-step procedure, sputtering followed by annealing, was adopted to achieve highly dispersed gold nanoparticles on SnO2 film. Morphological observations revealed that the gold nanoparticles were uniformly dispersed over the surface of SnO2 film. The transmittance and crystallinity of the as-fabricated film was found to improve substantially after the heat treatment. The suitability of the as-fabricated thin film for gas sensing was tested by detection of NO2. The results showed high response, and selectivity towards NO2. The response was about 90% to 50 ppm NO2 at room temperature, which was 5.5 and 3.2 times higher than that of the gold layer loaded SnO2, and pristine SnO2 sensors, respectively.

KW - Au nanoparticles

KW - Mechanism

KW - NO sensor

KW - Sputtering

KW - Thin films

KW - Tin oxide

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