Fabrication of NOx gas sensors using In2O3–ZnO composite films

Zigzag GaN/Ga2O3 heterogeneous nanowires: Synthesis, optical and gas sensing properties

“…[9][10][11] By contrast, investigations on using zigzag nitrogen oxide NWs for NO gas sensing are few. [26][27][28] Moreover, to the best of our knowledge, the evolution of zigzag GaN/Ga 2 O 3 heterogeneous NWs from changes caused by the on/off frequency process has not been reported thus far. In addition, sensors for detecting nitric oxide (NO) have received progressive attention because of the environment-and health-related effects of NO.…”

“…The NO gas released from combustion processes is not only a precursor to acid rain, but is also the cause of ozone depletion. 12,13 Among the materials used, In 2 O 3 and ZnO NWs are known to be sensitive to some oxidizing gases, such as NOx and ozone gas. Ga 2 O 3 and GaN NWs have been studied extensively in recent years.…”

Fabrication and characterization of nano-gas sensor arrays

“…It was reported before that, gas sensing improved properties are achieved in the case of doped materials, mixed materials, etc. [18]. The improvement of gas sensing properties was mainly attributed to the increase of oxygen vacancies-related surface defects, which provided more effective sites for reaction [19].…”

Gas Sensors for Monitoring Air Pollution

“…Gas sensors for monitoring principal gases among air pollutants are described in detail by using typical examples here. [19,[31][32][33][34][35][36][37][38][39]. These oxides have the advantages of rapid reactivity, efficiency, and gas selectivity when suitable additives are applied to them.…”