Basics of semiconducting metal oxide–based gas sensors

2019 ◽  
pp. 61-165 ◽  
Author(s):  
Alexandru Oprea ◽  
David Degler ◽  
Nicolae Barsan ◽  
Anne Hemeryck ◽  
Julia Rebholz
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Semiconducting Metal Oxide

Sulfur Dioxide Sensors

2021 ◽  
Keyword(s):  
Ionic Liquids ◽  
Sulfur Dioxide ◽  
Metal Oxide ◽  
Gas Sensors ◽  
Optical Sensors ◽  
Recent Progress ◽  
Amperometric Sensors ◽  
Metal Oxide Sensors ◽  
Semiconducting Metal Oxide

Recent progress on the sensing and monitoring of sulfur dioxide in the environment is presented. The sensing materials covered include potentiometric gas sensors, amperometric sensors, optical sensors involving colorimetric and fluorescence changes, sensors based on ionic liquids, semiconducting metal-oxide sensors, photoacoustic detectors and biosensors.

Extraordinary performance of semiconducting metal oxide gas sensors using dielectric excitation

2020 ◽  
Vol 3 (5) ◽  
pp. 280-289 ◽  
Author(s):  
Radislav A. Potyrailo ◽  
Steven Go ◽  
Daniel Sexton ◽  
Xiaxi Li ◽  
Nasr Alkadi ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Metal Oxide Gas Sensors ◽  
Semiconducting Metal Oxide

scholarly journals A Compact, Reliable and Efficient 16 Channel Power Supply for the Automated Screening of Semiconducting Metal Oxide Gas Sensors

Electronics ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 882 ◽  
Author(s):  
Christof Hammer ◽  
Johannes Warmer ◽  
Sebastian Sporrer ◽  
Peter Kaul ◽  
Ronald Thoelen ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Embedded System ◽  
Gas Sensors ◽  
Power Supply ◽  
Failure Detection ◽  
Operating Conditions ◽  
Detection Methods ◽  
Metal Oxide Gas Sensors ◽  
Automated Screening ◽  
Semiconducting Metal Oxide

The choice of suitable semiconducting metal oxide (MOX) gas sensors for the detection of a specific gas or gas mixture is time-consuming since the sensor’s sensitivity needs to be characterized at multiple temperatures to find its optimal operating conditions. To obtain reliable measurement results, it is very important that the power for the sensor’s integrated heater is stable, regulated and error-free (or error-tolerant). Especially the error-free requirement can be only be achieved if the power supply implements failure-avoiding and failure-detection methods. The biggest challenge is deriving multiple different voltages from a common supply in an efficient way while keeping the system as small and lightweight as possible. This work presents a reliable, compact, embedded system that addresses the power supply requirements for fully automated simultaneous sensor characterization for up to 16 sensors at multiple temperatures. The system implements efficient (avg. 83.3% efficiency) voltage conversion with low ripple output (<32 mV) and supports static or temperature-cycled heating modes. Voltage and current of each channel are constantly monitored and regulated to guarantee reliable operation. To evaluate the proposed design, 16 sensors were screened. The results are shown in the experimental part of this work.

Modeling of sensing and transduction for p-type semiconducting metal oxide based gas sensors

2009 ◽  
Vol 25 (1) ◽  
pp. 11-19 ◽  
Author(s):  
N. Barsan ◽  
C. Simion ◽  
T. Heine ◽  
S. Pokhrel ◽  
U. Weimar
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
P Type ◽  
Semiconducting Metal Oxide

Downsizing gas sensors based on semiconducting metal oxide: Effects of electrodes on gas sensing properties

2017 ◽  
Vol 248 ◽  
pp. 949-956 ◽  
Author(s):  
Young Geun Song ◽  
Young-Seok Shim ◽  
Sangtae Kim ◽  
Soo Deok Han ◽  
Hi Gyu Moon ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Sensing Properties ◽  
Gas Sensing Properties ◽  
Semiconducting Metal Oxide
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