Fabrication and characterization of CuO nanoplates based sensor device for ethanol gas sensing application

Herein, ethanol (C2H5OH) sensing properties of nanocrystalline copper oxide (CuO) nanoplates were investigated. The resistive chemi-sensor devices based on CuO nanoplates were fabricated for the enhanced and selective sensing of ethanol gas. The fabricated sensor exhibited a high ethanol response of 176% towards ethanol gas concentration of 100 ppm at 250 degrees C. At optimized reaction conditions, in presence of various gases, i.e. NO2, CO2, CH4, and H-2, the response of the fabricated sensor was highest which confirmed the high-selectivity. The fabricated CuO nanoplates based gas sensor was also employed for transient ethanol response and stability.

Automated summary

The ethanol sensing properties of nanocrystalline copper oxide (CuO) nanoplates were studied and a sensor based on CuO nanoplates showed a high ethanol response at 250 degrees C. The sensor exhibited high selectivity in the presence of various gases such as NO2, CO2, CH4, and H-2. The CuO nanoplates based gas sensor was also tested for transient ethanol response and stability.