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Light-assisted ozone gas-sensing performance of SnO2 nanoparticles: Experimental and theoretical insights

João V.N. de Palma,Ariadne C. Catto,Marisa C. de Oliveira,Renan A.P. Ribeiro,Marcio D. Teodoro,Luís F. da Silva

Sensors and Actuators Reports（2022）

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Abstract
•SnO2 nanoparticles were sensitive to sub-ppm ozone levels at room temperature under photoactivation.•The observed order of gas-sensing performance is UV > violet > blue.•Theoretical calculations showed that the (110) surface could increase the stability of photogenerated carriers enhancing the sensing performance•SnO2 nanoparticles can be used as promising light-assisted ozone gas sensors.
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Key words
SnO2,Nanoparticles,Chemiresistor,Light-assisted,Ozone,DFT calculations
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