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    • Controlled synthesis of ultrathin MoS2 nanoflowers for highly enhanced NO2 sensing at room temperature
    Authors: Nguyen, Tat Thang; Le, Thi Hong; Nguyen, Hoang Thoan; Chu, Manh Hung; Nguyen, Van Duy; Nguyen, Van Hieu; Nguyen, Duc Hoa;  Advisor: -;  Co-Author: - (2020)

    Fabrication of a high-performance room-temperature (RT) gas sensor is important for the future integration of sensors into smart, portable and Internet-of-Things (IoT)-based devices. Herein, we developed a NO2 gas sensor based on ultrathin MoS2 nanoflowers with high sensitivity at RT. The MoS2 flower-like nanostructures were synthesised via a simple hydrothermal method with different growth times of 24, 36, 48, and 60 h. The synthesised MoS2 nanoflowers were subsequently characterised by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The petal-like nanosheets in pure MoS2 agglomerated to f...