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<p>This work describes the spray pyrolysis synthesis of ZnS nanosheets (NSs) for use in sensing ethanol gas applications. The produced ZnS NSs were investigated via X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and UV–visible spectroscopy analysis. The XRD observation confirms that the wurtzite phases have a favored direction along the (111) plane of the developed ZnS NSs. Field emission scanning electron microscopy reveals the synthesis of agglomerated ZnS NSs with different sizes correspond to the preferred lattice planes. The UV–Vis spectrum of the nanosheets exhibits a broad peak around 460&#xa0;nm and a sharp peak at 350&#xa0;nm. The device detected gas responses at 2&#xa0;V through current-time measurements. For 3000 ppm ethanol at 125&#xa0;°C, the ZnS NSs sensor exhibits good sensitivity (13.7%) along with rapid reaction and recovery times of 199&#xa0;s and 21&#xa0;s, respectively. According to this study, the ZnS NSs could represent an effective option for an ethanol gas sensor.</p>

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High-response of ethanol gas sensor for ZnS nanosheets deposited on corning glass by spray pyrolysis technique

  • 期刊论文

  • 发表日期：

    2026年7月29日

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  • N. M. Abd-Alghafour,
  • Rafid Hammad Khalaf

摘要

This work describes the spray pyrolysis synthesis of ZnS nanosheets (NSs) for use in sensing ethanol gas applications. The produced ZnS NSs were investigated via X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and UV–visible spectroscopy analysis. The XRD observation confirms that the wurtzite phases have a favored direction along the (111) plane of the developed ZnS NSs. Field emission scanning electron microscopy reveals the synthesis of agglomerated ZnS NSs with different sizes correspond to the preferred lattice planes. The UV–Vis spectrum of the nanosheets exhibits a broad peak around 460 nm and a sharp peak at 350 nm. The device detected gas responses at 2 V through current-time measurements. For 3000 ppm ethanol at 125 °C, the ZnS NSs sensor exhibits good sensitivity (13.7%) along with rapid reaction and recovery times of 199 s and 21 s, respectively. According to this study, the ZnS NSs could represent an effective option for an ethanol gas sensor.