Figure 30. Sensing mechanism of pure ZnO nanowires and Au-ZnO nanowires towards NO2 (a) Pure ZnO nanowires in air; (b) Pure ZnO nanowires exposed to NO2; (c) Au-ZnO nanowires in air; (d) Au-ZnO nanowires exposed to NO2 [60]

From

Review of Recent Advances of ZnO Nanowires Based Sensors

Ahmed M. Nahhas

American Journal of Nanomaterials. 2020, 8(1), 18-31 doi:10.12691/ajn-8-1-3