Conductivity and response formation of semiconductor gas sensors based on tin dioxide nanomaterials

Highly sensitive to methane semiconductor sensors were obtained with the use of nanosized tin dioxide synthesized via sol-gel method. Sensitization of the sensors was achieved by introduction of Pt additives into semiconductor gas sensitive materials. Experimental data of dependences of conductiviti...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2024-05, Vol.768 (7), p.9-16
Main Authors: Oleksenko, Luidmila P., Fedorenko, George V., Maksymovych, Nelly P., Vasylenko, Inna V., Ripko, Oleksandr P., Symonenko, Ye O.
Format: Article
Language:English
Subjects:
Conductivity
Dioxides
Gas sensors
Methane
methane sensors
Nanomaterials
Nanotechnology
Oxidation
Pt/SnO
response formation model
semiconductor nanomaterials
Sensors
Sol-gel processes
sol-gel synthesis
Tin
Tin dioxide
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Summary:Highly sensitive to methane semiconductor sensors were obtained with the use of nanosized tin dioxide synthesized via sol-gel method. Sensitization of the sensors was achieved by introduction of Pt additives into semiconductor gas sensitive materials. Experimental data of dependences of conductivities of the created sensors on methane concentrations were used for approximation by a mathematical model of the sensor conductivity and response formation. The model is based on features of a methane oxidation reaction on the surface of the gas sensitive material and allows to connect conductivity of the sensor with surface processes occurred on its gas sensitive layer.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2024.2348173