The sensing characteristics of ZnO tetrapods synthesized by microwave evaporation | Zendy

Ahmed S. Afify | Zendy; Ahmed Elsayed | Zendy; Ahmed S. Abu Khadra | Zendy; Mohamed Hassan | Zendy; M. Ataalla | Zendy; Amr Mohamed | Zendy; JeanMarc Tulliani | Zendy

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The sensing characteristics of ZnO tetrapods synthesized by microwave evaporation

Author(s) -

Ahmed S. Afify,

Ahmed Elsayed,

Ahmed S. Abu Khadra,

Mohamed Hassan,

M. Ataalla,

Amr Mohamed,

JeanMarc Tulliani

Publication year - 2018

Publication title -

journal of communications software and systems

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.191

H-Index - 13

eISSN - 1846-6079

pISSN - 1845-6421

DOI - 10.24138/jcomss.v14i1.449

Subject(s) - relative humidity , materials science , microstructure , scanning electron microscope , evaporation , microwave , humidity , methane , chemical engineering , nanotechnology , composite material , chemistry , organic chemistry , physics , quantum mechanics , engineering , thermodynamics

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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