Room temperature NO2 sensing properties of ZnO1-α coating prepared by hydrogen reduction method

NO2 emission is currently one of the important factors threatening the quality of life of residents. Preparing ZnO-based gas sensors to monitor the concentration of NO2 has attracted growing attention. This article reports a method for preparing ZnO1-α by hydrogen heat treatment. The ZnO coating prepared by the spin coating method is directly placed in a reduced atmosphere with 3% hydrogen for heat treatment to produce a self-doped ZnO1-α...