A percolation model of semiconductor gas sensors with a hierarchical pore structure

Authors

  • I.A. Pronin Penza State University
  • N.D. Yakushova Penza State University
  • I.A. Averin Penza State University
  • V.A. Moshnikov Saint Petersburg State Electrotechnical University
  • B.V. Donkova Sofia University
  • D.Tz. Dimitrov Sofia University
  • A.Ts. Georgieva University of Florida
  • S.S. Nalimova Saint Petersburg State Electrotechnical University

DOI:

https://doi.org/10.4108/eai.22-1-2019.156516

Keywords:

gas sensor, percolation, sol-gel method, fractals, hierarchical structures

Abstract

A percolation model of gas sensors is proposed, on the basis of which the effect of material porosity, pore size and pore size distribution on the gas detection threshold is analyzed. It is shown that micropores exert the greatest influence on gas sensitive properties. An increase in the percolation threshold leads to an increase in the detection threshold of reducing gases. The developed percolation model is used to explain high sensitivity values of sensor structures obtained by the chemical co-precipitation method.

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Published

05-02-2019

Issue

Vol. 6 No. 22 (2019): EAI Endorsed Transactions on Energy Web

Section

Research articles

License

Copyright (c) 2022 EAI Endorsed Transactions on Energy Web

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 Unported License.

This is an open-access article distributed under the terms of the Creative Commons Attribution CC BY 4.0 license, which permits unlimited use, distribution, and reproduction in any medium so long as the original work is properly cited.

How to Cite

1.
A percolation model of semiconductor gas sensors with a hierarchical pore structure. EAI Endorsed Trans Energy Web [Internet]. 2019 Feb. 5 [cited 2025 Nov. 1];6(22):e10. Available from: https://publications.eai.eu/index.php/ew/article/view/937

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