Figure 9. Response/recovery time of sensor based on (a) pure CuO, (b) ZC-2 to 80 ppm ethanol at optimal operating temperature [61]

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