Modelling of Dynamic Response of WO3 Gas Sensors under CO

Research & Reviews: Journal of Statistics and Mathematical Sciences

article

Mehdi Othman¹  Khalifa Aguir¹  Najeh Mliki²  Philippe Menini³ 

[1] Aix-Marseille Université;LMOP, Faculté des Sciences de Tunis, Université de Tunis El Manar;Laboratoire d’Analyses et d’Architecture des Systèmes CNRS

关键词: Gas sensors;    WO3;    Resistance modelling;    CO gas sensors.;   

来源: Research & Reviews

【 摘 要 】

We propose a model for gas sensors dynamic response which puts emphasis on conduction properties of n-type semiconductors. This model gives a physico-chemical description of gas detection mechanisms, by focusing on the extrinsic behavior of the sensor in the presence of reducing gas. Theoretical modeling of the sensor resistance in respect to experimental results was done to optimize sensor performances and also to better understand the gas detection mechanisms. This model especially applies in the case of exposure to low gas concentrations.

【 授权许可】

Unknown