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Heterostructure/Pore-Size Ordered SnO2 Porous Films and Multiphysical Mechanism for Rapid Detection of Ethanol | IEEE Journals & Magazine | IEEE Xplore

Heterostructure/Pore-Size Ordered SnO2 Porous Films and Multiphysical Mechanism for Rapid Detection of Ethanol


Abstract:

In the work, heterostructure and heteropore size based on SnO2 are fabricated by the 2-D colloidal crystal template method, and the effects of morphological richness and ...Show More

Abstract:

In the work, heterostructure and heteropore size based on SnO2 are fabricated by the 2-D colloidal crystal template method, and the effects of morphological richness and pore size of ordered porous films on gas-sensitive properties were systematically investigated. The sensor based on ordered porous films possesses excellent fast response, stability, and detection limit down to 1 ppm to ethanol. To explain the sensing mechanism, a novel multiphysics field-coupled analysis method, such as electrical and hydrodynamic, was used to quantify the gas adsorption on the gas-sensitive film surface and the internal current density distribution. The results demonstrate that the simulation can explain the experimental phenomena well.
Article Sequence Number: 9509109
Date of Publication: 26 July 2022

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