Light irradiation effect on the gas sensing properties of the ZnO nanostructures

G. Atanasova; T. Dilova; A. Og. Dikovska; G. Avdeev; P. Stefanov; N. N. Nedyalkov

doi:10.1117/12.2516517

29 January 2019 Light irradiation effect on the gas sensing properties of the ZnO nanostructures

G. Atanasova, T. Dilova, A. Og. Dikovska, G. Avdeev, P. Stefanov, N. N. Nedyalkov

Proceedings Volume 11047, 20th International Conference and School on Quantum Electronics: Laser Physics and Applications; 110470B (2019) https://doi.org/10.1117/12.2516517
Event: International Conference and School on Quantum Electronics "Laser Physics and Applications": ICSQE 2018, 2018, Nessebar, Bulgaria

Abstract

In this work, we present fabrication of ZnO nanostructures by pulsed laser deposition in air at atmospheric pressure. The use of this technology leads to formation of nanostructures composed by nanoparticles and nanoaggregates. These nanostructures possess a large surface-to-volume ratio, which makes them suitable for gas-sensor application. The samples were exposed to NH₃ and the effect was investigated of light irradiation on the gas response and recovery time of the sensor element. It was found that the response of the sensor element increases even by irradiation by sunlight. The gas sensing properties of the ZnO nanostructures were compared when irradiated by light of different wavelengths.

Citation Download Citation

G. Atanasova, T. Dilova, A. Og. Dikovska, G. Avdeev, P. Stefanov, and N. N. Nedyalkov "Light irradiation effect on the gas sensing properties of the ZnO nanostructures", Proc. SPIE 11047, 20th International Conference and School on Quantum Electronics: Laser Physics and Applications, 110470B (29 January 2019); https://doi.org/10.1117/12.2516517

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