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Production of sensitive gas sensors using CuO/SnO2 nanoparticles

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Version 2 2025-01-08, 09:54
Version 1 2022-11-22, 21:12
journal contribution
revised on 2025-01-08, 09:53 and posted on 2025-01-08, 09:54 authored by Ahmad I. Ayesh, Aldana A. Alyafei, Rameen S. Anjum, Radwa M. Mohamed, Mai B. Abuharb, Belal Salah, Maitha El-Muraikhi

Metal oxide nanoparticles, such as CuO and SnO2, are outstanding systems for H2S gas sensing in air. In this work, those nanoparticles were deposited with different mixing percentages on substrates to form percolating networks of nanoparticles. Electrical electrodes were deposited on the nanoparticles’ films to investigate their gas sensing response against H2 and H2S, and their electrical characteristics. The sensor devices based on CuO–SnO2 nanoparticles revealed enhanced sensing characteristics against H2S with a sensitivity of 10 ppm. The enhanced sensing characteristics could be attributed to the formation of PN-junctions among CuO and SnO2 nanoparticles. The reasonable production cost (due to simple structure and cheap used materials), low power consumption ( ~ 1 µW for H2S at room temperature), high sensitivity, high response, and reasonable response time of the present sensors qualify them for practical implementation in portable gas sensing devices with enhanced characteristics.

Other Information

Published in: Applied Physics A
License: https://creativecommons.org/licenses/by/4.0
See article on publisher's website: http://dx.doi.org/10.1007/s00339-019-2856-6

Funding

Open Access funding provided by the Qatar National Library.

Qatar National Research Fund (UREP21-035-2-013), Development of flexible H2S sensors based on nanoparticle-polymer composites.

History

Language

  • English

Publisher

Springer Nature

Publication Year

  • 2019

License statement

This Item is licensed under the Creative Commons Attribution 4.0 International License.

Institution affiliated with

  • Qatar University
  • College of Arts and Sciences - QU
  • College of Engineering - QU

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