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.

(The Sensing Characteristics of ZnO Tetrapods Synthesized by Microwave Evaporation) / Afify, Ahmed S.; Elsayed, AHMED MAHMOUD; Abu Khadra, Ahmad S.; Mohamed, Hassan; Ataalla, Mohamed; Mohamed, Amr; Tulliani, Jean Marc Christian. - In: JOURNAL OF COMMUNICATION SOFTWARE AND SYSTEMS. - ISSN 1845-6421. - ELETTRONICO. - 14:1(2018). [10.24138/jcomss.v14i1.449]

(The Sensing Characteristics of ZnO Tetrapods Synthesized by Microwave Evaporation)

Ahmed S. Afify;Ahmed Elsayed;ABD EL AZIZ, FATMA KHALED MOHAMED HASSAN;Jean-Marc Tulliani
2018

Abstract

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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2699675
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