Exploitation of a low-cost electronic system, designed for low-conductance and wide-range measurements, to control metal oxide gas sensors with temperature profile protocols

2012 ◽  
Vol 175 ◽  
pp. 149-156 ◽  
Author(s):  
A. Ponzoni ◽  
A. Depari ◽  
E. Comini ◽  
G. Faglia ◽  
A. Flammini ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Temperature Profile ◽  
Gas Sensors ◽  
Low Cost ◽  
Electronic System ◽  
Range Measurements ◽  
Wide Range ◽  
Metal Oxide Gas Sensors

scholarly journals Sensitive and Low-Power Metal Oxide Gas Sensors with a Low-Cost Microelectromechanical Heater

ACS Omega ◽  
2021 ◽  
Author(s):  
Yulong Chen ◽  
Mingjie Li ◽  
Wenjun Yan ◽  
Xin Zhuang ◽  
Kar Wei Ng ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Low Power ◽  
Gas Sensors ◽  
Low Cost ◽  
Metal Oxide Gas Sensors

scholarly journals Organic Membranes for Selectivity Enhancement of Metal Oxide Gas Sensors

2016 ◽  
Vol 2016 ◽  
pp. 1-22 ◽  
Author(s):  
Thorsten Graunke ◽  
Katrin Schmitt ◽  
Jürgen Wöllenstein
Keyword(s):  
Metal Oxide ◽  
Functional Groups ◽  
Gas Sensors ◽  
Low Cost ◽  
Gas Permeation ◽  
Simple Relationship ◽  
Limit Values ◽  
The Matrix ◽  
Metal Oxide Gas Sensors

We present the characterization of organic polyolefin and thermoplastic membranes for the enhancement of the selectivity of metal oxide (MOX) gas sensors. The experimental study is done based on theoretical considerations of the membrane characteristics. Through a broad screening of dense symmetric homo- and copolymers with different functional groups, the intrinsic properties such as the mobility or the transport of gases through the matrix were examined in detail. A subset of application-relevant gases was chosen for the experimental part of the study: H2, CH4, CO, CO2, NO2, ethanol, acetone, acetaldehyde, and water vapor. The gases have similar kinetic diameters and are therefore difficult to separate but have different functional groups and polarity. The concentration of the gases was based on the international indicative limit values (TWA, STEL). From the results, a simple relationship was to be found to estimate the permeability of various polar and nonpolar gases through gas permeation (GP) membranes. We used a broadband metal oxide gas sensor with a sensitive layer made of tin oxide with palladium catalyst (SnO2:Pd). Our aim was to develop a low-cost symmetrical dense polymer membrane to selectively detect gases with a MOX sensor.

scholarly journals Response dynamics of metal oxide gas sensors working with temperature profile protocols

2011 ◽  
Vol 25 ◽  
pp. 1173-1176 ◽  
Author(s):  
A. Ponzoni ◽  
A. Depari ◽  
E. Comini ◽  
G. Faglia ◽  
A. Flammini ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Temperature Profile ◽  
Gas Sensors ◽  
Response Dynamics ◽  
Metal Oxide Gas Sensors

scholarly journals P1SM.7 - Investigation of active heated gas filters on metal oxide gas sensors using a microstructured stacked-die setup

2018 ◽  
Author(s):  
T. Graunke ◽  
S. Raible ◽  
K. R. Tarantik ◽  
K. Schmitt ◽  
J. Wöllenstein
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Metal Oxide Gas Sensors

scholarly journals GS1.2 - Nanoheterostructure Metal Oxide Gas Sensors: Opportunities and Challenges

2018 ◽  
Author(s):  
S. A. Akbar ◽  
D. R. Miller ◽  
M. A. Al-Hashem ◽  
P. Karnati ◽  
J. Walker ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Gas Sensors ◽  
Metal Oxide Gas Sensors

Investigating Simultaneous Effects of Flow Rate and Chamber Structure on the Performance of Metal Oxide Gas Sensors

2021 ◽  
pp. 1-1
Author(s):  
Hannaneh Mahdavi ◽  
Saeideh Rahbarpour ◽  
Reza Goldoust ◽  
Seyed-Mohsen Hosseini-Golgoo ◽  
Hamidreza Jamaati
Keyword(s):  
Metal Oxide ◽  
Flow Rate ◽  
Gas Sensors ◽  
Metal Oxide Gas Sensors

scholarly journals SPM—SEM Investigations of Semiconductor Nanowires for Integrated Metal Oxide Gas Sensors

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 701 ◽  
Author(s):  
Verena Leitgeb ◽  
Katrin Fladischer ◽  
Frank Hitzel ◽  
Florentyna Sosada-Ludwikowska ◽  
Johanna Krainer ◽  
...  
Keyword(s):  
Electron Beam ◽  
Metal Oxide ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Semiconductor Nanowires ◽  
Kelvin Probe ◽  
Sensor Applications ◽  
Sensitivity And Selectivity ◽  
Stable Performance ◽  
Metal Oxide Gas Sensors

Integration of metal oxide nanowires in metal oxide gas sensors enables a new generation of gas sensor devices, with increased sensitivity and selectivity. For reproducible and stable performance of next generation sensors, the electric properties of integrated nanowires have to be well understood, since the detection principle of metal oxide gas sensors is based on the change in electrical conductivity during gas exposure. We study two different types of nanowires that show promising properties for gas sensor applications with a Scanning Probe Microscope—Scanning Electron Microscope combination. Electron Beam Induced Current and Kelvin Probe Force Microscopy measurements with a lateral resolution in the nanometer regime are performed. Our work offers new insights into the dependence of the nanowire work function on its composition and size, and into the local interaction between electron beam and semiconductor nanowires.

Sign in / Sign up

Export Citation Format

Share Document