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Journal of Materials Science: Materials in Electronics

Zn-doped SnO2 nanoparticles for ethanol vapor sensor: a combined experimental and first-principles study

  • 01-04-2023
Published in:
Authors
Meihua Li
Chao Mou
Yunfan Zhang
Xiao Li
Huichao Zhu
Guangfen Wei
Published in
Journal of Materials Science: Materials in Electronics | Issue 12/2023

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Abstract

The article presents a detailed study on the synthesis and characterization of Zn-doped SnO2 nanoparticles for ethanol vapor sensors. Using a hydrothermal method, the researchers successfully prepared Zn-doped SnO2 with varying concentrations and investigated their sensing performance. Through XRD, SEM, TEM, and XPS analyses, they found that Zn doping reduced the crystal size, improved dispersion, and formed Schottky junctions, enhancing the sensor's response and selectivity. First-principles calculations further elucidated the improved gas-sensitive properties, showing that Zn doping lowered the adsorption energy and increased the carrier concentration. The 4 wt% Zn-doped SnO2 exhibited a remarkable response of 112 to 100 ppm ethanol at 300°C, demonstrating its potential for practical applications in environmental monitoring and safety.
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Title
Zn-doped SnO2 nanoparticles for ethanol vapor sensor: a combined experimental and first-principles study
Authors
Meihua Li
Chao Mou
Yunfan Zhang
Xiao Li
Huichao Zhu
Guangfen Wei
Publication date
01-04-2023
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 12/2023
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-023-10502-x
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