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  • Open Access

    ARTICLE

    Synthesis and Characterization of Cu2ZnSnS4 (CZTS) Thin Films for Gas Sensor Applications

    F. T. Ibrahim1,*, A. A. Qassim2, S. M. A. Al-Dujayli1

    Chalcogenide Letters, Vol.22, No.11, pp. 929-937, 2025, DOI:10.15251/CL.2025.2211.929

    Abstract This work, pulse laser deposition technique was employee to synthesize Cu2ZnSnS4 (CZTS) thin films with different lasing energy (500, 600, 700, 800, 900 mJ). Through using different characterization technique to study structural, optical and gas sensing properties. the use of X-ray diffraction, the samples have polycrystalline with cubic structure. The EDX examination showed that the sample contains a suitable amount of Zn, Sn, Cu, and S atoms to form CZTS. UV-VIS measurement indicates that the synthesis of thin films employing a lower laser energy result in a drop in deposit sample thickness, which in turn More >

  • Open Access

    ARTICLE

    Accurate Location Estimation of Smart Dusts Using Machine Learning

    Shariq Bashir1,*, Owais Ahmed Malik2, Daphne Teck Ching Lai2

    CMC-Computers, Materials & Continua, Vol.71, No.3, pp. 6165-6181, 2022, DOI:10.32604/cmc.2022.024269 - 14 January 2022

    Abstract Traditional wireless sensor networks (WSNs) are not suitable for rough terrains that are difficult or impossible to access by humans. Smart dust is a technology that works with the combination of many tiny sensors which is highly useful for obtaining remote sensing information from rough terrains. The tiny sensors are sprinkled in large numbers on rough terrains using airborne distribution through drones or aircraft without manually setting their locations. Although it is clear that a number of remote sensing applications can benefit from this technology, but the small size of smart dust fundamentally restricts the… More >

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