Kinetics of indium oxide-based thin film gas sensor response: The role of “redox” and adsorption/desorption processes in gas sensing effects

In2O3:Ga and In2O3:P-based one-electrode gas sensors: Comparative study

“…An increase of Ga-oxide concentration was being accompanied by the shift of the maximum sensitivity to methane from 400 1C (0% Ga 2 O 3 ) to 520 1C (20% Ga 2 O 3 ). One should note that such difference in temperature position of the sensor response maximum to ozone and reducing gases is typical for metal oxide gas sensors: it is caused by the difference in the nature of these gases and the mechanisms of these gases detection [20]. As it is shown in Fig.…”

Thin film SnO2-based gas sensors: Film thickness influence

“…Time constants of transient processes were determined on the 0.9 level from a steady state value of film conductivity. The methodology of these measurements, including the methodology of the study of sensor response kinetics, has been previously described [31]. During the process of interaction with the surrounding gas, the response and recovery time constants of the film conductivity relaxation have been determined for the operating temperatures at which the time constants exceeded the time of the full change of gas atmosphere in the measuring cell.…”

Studies on Spray Pyrolised Nanostructured SnO₂ Thin Films for H₂ Gas Sensing Application

“…Gas sensors based on n-type semiconductors like SnO 2 and ZnO have been studied for the detection of inflammable or toxic gases such as H 2 , CH 4 , C 2 H 5 OH, CO or LPG [32][33][34][35][36][37][38][39].…”