Enhancing NO2 gas sensing performances at room temperature based on reduced graphene oxide-ZnO nanop
NO2 gas sensor has been constructed using reduced graphene oxide-ZnO nanoparticles (ZnO-rGO) hybrids as sensing materials. Most importantly, the sensor exhibits ... Fig. 1 b shows the Raman spectra of ZnO-rGO hybrids, rGO and GO, revealing a D band at ......