Synthesis and Characterization of Nanostructured
Cerium-Doped Zinc Oxide Thin Films for Selective
Nitrogen Dioxide Gas Sensing Applications |
Mahalingeshwar Vishwanath Hiremath,a Naeemakhtar Momin,b Jayappa Manjanna,c Balachandra
Gajanan Hegdea and Devidas Gaibanna Byalollikard, *
Pages : 199-210
DOI : 10.1080/0371750X.2024.2405913 |
Abstract |
Zinc oxide thin films doped with cerium were synthesized through facile spray pyrolysis
technique and subsequently characterized via an array of analytical methods, including
X-ray diffraction, ultraviolet-visible diffused reflectance absorption spectroscopy,
photoluminescence, scanning electron microscopy and energy-dispersive X-ray
spectroscopy techniques. The operative mechanism of the semiconductor metal oxide
gas sensors is predicated on the modulation of electrical conductivity in response to
varying gaseous atmospheres, under the influence of disparate thermal conditions.
The nitrogen dioxide gas-sensing performance of the films demonstrated a noteworthy
gas response of 18% at an elevated temperature of 400°C for a concentration of 100
ppm, accompanied by rapid response and recovery times of 23 and 60 s, respectively.
[Keywords: Semiconductor, Sensor, NO2, 5 mol% Ce-doped ZnO, Sensitivity] |
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