The Sensing Characteristics of ZnO Tetrapods Synthesized by Microwave Evaporation
Abstract
ZnO tetrapods have been grown by an environmental microwave evaporation approach in air atmosphere without any use of organic solvents or precursors. The synthesized powder was characterized using X-ray diffractometry (XRD) and Field emission Scanning Electron Microscopy (FE-SEM). The grown ZnO tetrapods exhibited a noteworthy microstructure and phase formation of crystalline and pure structure. ZnO tetrapods were deposited on Pt electrode to be employed as ZnO tetrapods structure-based sensors, then, they were investigated at room temperature in the relative humidity ranging from 0.0 to 96.0%. The sensors have shown a significant response towards relative humidity starting from 30%. Cross-sensitivity was investigated with respect to N2O (150 ppm in helium) and methane (1000 ppm in helium). The ZnO tetrapods-based sensors were insensitive towards the interfering gases, indicating a potential applicability for humidity sensing purposes.
Keywords
Chemical sensor, Electron microscopy, Humidity measurement
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A. S. Afify, A. Elsayed, A. S. Abu Khadra, M. Hassan, M. Ataalla, A. Mohamed and J. Tulliani, "The Sensing Characteristics of ZnO Tetrapods Synthesized by Microwave Evaporation," in Journal of Communications Software and Systems, vol. 14, no. 1, pp. 4-8, February 2018, doi: 10.24138/jcomss.v14i1.449
@article{afify2018sensingcharacteristics,
author = {Ahmed S. Afify and Ahmad Elsayed and Ahmed S. Abu Khadra and Mohamed Hassan and Mohamed Ataalla and Amr Mohamed and Jean Marc Tulliani},
title = {The Sensing Characteristics of ZnO Tetrapods Synthesized by Microwave Evaporation},
journal = {Journal of Communications Software and Systems},
month = {2},
year = {2018},
volume = {14},
number = {1},
pages = {4--8},
doi = {10.24138/jcomss.v14i1.449},
url = {https://doi.org/10.24138/jcomss.v14i1.449}
}