Surface State Model for Conductance Responses During Thermal-Modulation of SnO $_{2}$ -Based Thick Film Sensors: Part II—Experimental Verification

This paper and its companion (Part I) are devoted to the development and to the experimental verification of three simple gray-box models able to predict the behavior of some commercial thick film SnO 2 -based sensors in presence of oxygen and a reducing gas (CO). In this paper the models developed in Part I are applied to different commercial tin oxide sensors, and experimental results are discussed in order to gain a deeper insight into the sensor behavior