Electrical response of Sm2O3-doped SnO2 to C2H2 and effect of humidity interference
Q Qi, T Zhang, X Zheng, H Fan, L Liu, R Wang… - Sensors and Actuators B …, 2008 - Elsevier
Pure and Sm2O3-doped SnO2 are prepared through a sol–gel method and characterized by
X-ray diffraction (XRD) and transmission electron microscopy (TEM). The sensor based on …
X-ray diffraction (XRD) and transmission electron microscopy (TEM). The sensor based on …
Temperature modulated gas sensing E-nose system for low-cost and fast detection
Constant sensor-heating voltage is commonly used in electronic nose, such that multiple
sensors should be integrated as a sensor array in order to differentiate multiple odor …
sensors should be integrated as a sensor array in order to differentiate multiple odor …
Quantitative gas mixture analysis using temperature-modulated micro-hotplate gas sensors: Selection and validation of the optimal modulating frequencies
The selectivity of metal oxide gas sensors can be improved by operating the sensors in a
temperature-modulated mode. Although the selection of optimal modulating frequencies …
temperature-modulated mode. Although the selection of optimal modulating frequencies …
Low-voltage low-power integrated analog lock-in amplifier for gas sensor applications
A D'amico, A De Marcellis, C Di Carlo… - Sensors and Actuators B …, 2010 - Elsevier
We propose a low-voltage (±1V) low-power (3mW) lock-in amplifier, fabricated in a standard
CMOS technology (AMS 0.35 μm) with analog features and utilized for low-frequency gas …
CMOS technology (AMS 0.35 μm) with analog features and utilized for low-frequency gas …
On the role of individual metal oxide nanowires in the scaling down of chemical sensors
Single-crystalline semiconductor metal oxide nanowires exhibit novel structural and
electrical properties attributed to their reduced dimensions, well-defined geometry and the …
electrical properties attributed to their reduced dimensions, well-defined geometry and the …
A computational chemist approach to gas sensors: Modeling the response of SnO2 to CO, O2, and H2O Gases
A general bottom‐up modeling strategy for gas sensor response to CO, O2, H2O, and
related mixtures exposure is demonstrated. In a first stage, we present first principles …
related mixtures exposure is demonstrated. In a first stage, we present first principles …
Simplified models for SnO2 sensors during chemical and thermal transients in mixtures of inert, oxidizing and reducing gases
In this work, a set of models able to predict the behavior of tin oxide (SnO2) sensors during
chemical and thermal transients is presented. These models are obtained through …
chemical and thermal transients is presented. These models are obtained through …
A dynamic response model for the WO3-based ozone sensors
In this paper, a dynamic model based on the Wolkenstein adsorption theory is developed for
temperatures equal to or less than 250° C and non-dissociative adsorption. We assumed …
temperatures equal to or less than 250° C and non-dissociative adsorption. We assumed …
Transient characterization techniques for resistive metal-oxide gas sensors
A Varpula, S Novikov, A Haarahiltunen… - Sensors and Actuators B …, 2011 - Elsevier
We present three different time-domain characterization techniques for resistive metal-oxide
gas sensors. They are based on electric resistance transients induced by small step …
gas sensors. They are based on electric resistance transients induced by small step …
WO3 sensor response according to operating temperature: Experiment and modeling
WO3-based sensors are realized in the aim to detect ozone. The thin film of WO3 is
sputtered on a SiO2/Si substrate with Pt micro-electrodes. In a previous work, the sensor …
sputtered on a SiO2/Si substrate with Pt micro-electrodes. In a previous work, the sensor …