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Sensing characteristics of tin-doped ZnO thin films as NO2 gas sensor
Open accessAbstract
NO 2 gas sensor was fabricated by successive ionic layer adsorption and reaction (SILAR) technique and rapid photothermal processing (RPP) of the Sn-doped ZnO film. The experimental results shows that tin doping of zinc oxide thin films improve the sensor element sensitivity to 1.5 ppm NO 2 in air and downshift the operating temperature. The influence of variation of Sn concentration in the chemical bath and the RPP temperature on NO 2 sensitivity of thin film sensor elements was investigated in this work. Higher sensitivity was obtained at 5–10 at.% tin concentration in the solution of ions and RPP temperature of 550–650 °C. Increasing the Sn concentration in doped ZnO samples more than 10 at.% as well as decreasing the oxygen partial pressure leads to the NO 2 gas sensitivity decrease. It looks promising to use the inexpensive tin-doped zinc oxide thin films obtained by SILAR method and RPP in smart gas sensing devices that are able to recognize gas species in low concentrations and are demanded for continuous environmental monitoring.
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Cited by
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Afzal, A., Cioffi, N., Sabbatini, L., & Torsi, L. (2012) · Sensors and Actuators B: Chemical · doi:10.1016/j.snb.2012.05.026 · Cited by 428
Gogurla, N., Sinha, A. K., Santra, S., Manna, S., & Ray, S. K. (2014) · Scientific Reports · doi:10.1038/srep06483 · Cited by 417
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Kikuchi, Y., Qian, Q., Machida, M., & Tatsumoto, H. (2006) · Carbon · doi:10.1016/j.carbon.2005.07.040 · Cited by 236
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Zhang, Z., Zou, X., Xu, L., Liao, L., Liu, W., Ho, J., Xiao, X., Jiang, C., & Li, J. (2015) · Nanoscale · doi:10.1039/c5nr01924a · Cited by 212
Metadata
- Authors
- Shishiyanu, S. T., Shishiyanu, T. S., & Lupan, O. I.
- Venue
- Sensors and Actuators B: Chemical
- Publisher
- Elsevier BV
- Published
- 2005-05
- Volume
- 107
- Issue
- 1
- Pages
- 379-386
- ISSN
- 0925-4005 (ISSN-L)
- OpenAlex
- W2018803765
- Cited by
- 487
- References
- 0
- FWCI
- 6.87
- Type
- journal article
- Language
- en
- Open access
- gold
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- Shishiyanu, S. T., Shishiyanu, T. S., & Lupan, O. I. (2005). Sensing characteristics of tin-doped ZnO thin films as NO2 gas sensor. Sensors and Actuators B: Chemical. https://doi.org/10.1016/j.snb.2004.10.030
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