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    • Significantly enhanced NO2 gas-sensing performance of nanojunction-networked SnO2 nanowires by pulsed UV-radiation
    Authors: Nguyen, Manh Hung;  Advisor: Chu, Manh Hung; Nguyen, Van Duy; Nguyen, Duc Hoa; Hoang, Si Hong; Tran, Khoa Dang; Nguyen, Ngoc Viet; Le, Viet Thong; Phan, Hong Phuoc; Nguyen, Van Hieu;  Co-Author: - (2021)

    A unique combination of high response and fast response-recovery is still a challenge in the development of room-temperature gas sensors. Herein, we demonstrated the on-chip growth of nanojunction-networked SnO2 NW sensors to work under UV-radiation at room temperature. The morphological, compositional, and structural properties of synthesized SnO2 nanowires were examined using field emission electron microscopy, energy dispersive spectroscopy, X-ray diffraction, and high-resolution transmission electron microscopy, respectively. The results presented the SnO2 NWs with smooth surfaces were entangled between the Pt electrode. Besides, the internal properties showed the SnO2 NWs were cr...