Enhancement of ethanol-sensing properties of ZnO nanoplates by UV illumination

  • Luong Huu Phuoc
  • Do Duc ThoEmail author
  • Nguyen Tien Dung
  • Vu Xuan Hien
  • Dang Duc Vuong
  • Nguyen Duc Chien


ZnO nanoplates with hexagonal wurtzite structure were synthesized by hydrothermal treatment. The average dimension and average thickness of the plates were \(\sim \)200 \(\times \) 400 and 40 nm, respectively. ZnO nanoplates were deposited on Pt-interdigitated electrodes for the fabrication of gas-sensing devices. The ethanol-sensing properties of the devices were investigated in the dark vs. ultraviolet (UV) illumination. Under the UV illumination, the optimal operating temperature of the devices can be reduced from 237 to \(164{^{\circ }}\hbox {C}\) and the response of the device was increased from 2.8 to 8.5 towards 1500 ppm ethanol vapour.


Hydrothermal UV illumination ZnO nanoplate ethanol vapour sensing 



This work was supported by the project code B2017-BKA-49.


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Copyright information

© Indian Academy of Sciences 2019

Authors and Affiliations

  • Luong Huu Phuoc
    • 1
  • Do Duc Tho
    • 1
    Email author
  • Nguyen Tien Dung
    • 1
  • Vu Xuan Hien
    • 1
  • Dang Duc Vuong
    • 1
  • Nguyen Duc Chien
    • 1
  1. 1.School of Engineering PhysicsHanoi University of Science and TechnologyHanoiVietnam

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