A comparison of the gas sensing properties of solid state metal oxide semiconductor gas sensors produced by atmospheric pressure chemical vapour deposition and screen printing

2006 ◽  
Vol 18 (1) ◽  
pp. 190-200 ◽  
Author(s):  
Russell Binions ◽  
Claire J Carmalt ◽  
Ivan P Parkin
Keyword(s):  
Gas Sensors ◽  
Atmospheric Pressure ◽  
Screen Printing ◽  
Vapour Deposition ◽  
Gas Sensing ◽  
Chemical Vapour ◽  
Oxide Semiconductor ◽  
Gas Sensing Properties ◽  
Pressure Chemical ◽  
Semiconductor Gas Sensors

Semiconductor Gas Sensors for Environmental Monitoring

2006 ◽  
Vol 45 ◽  
pp. 1818-1827 ◽  
Author(s):  
M.C. Carotta ◽  
E. Ferrari ◽  
A. Giberti ◽  
C. Malagù ◽  
Marco Nagliati ◽  
...  
Keyword(s):  
Gas Sensors ◽  
Screen Printing ◽  
Gas Sensing ◽  
Surface Barrier ◽  
Barrier Potential ◽  
Semiconductor Oxides ◽  
Screen Printing Technique ◽  
Gas Sensing Properties ◽  
Printing Technique ◽  
Semiconductor Gas Sensors

The main semiconductor oxides for gas sensing have been examined, describing the synthesis processes and the morphological and structural properties. The powders have been deposited as thick films through screen-printing technique to achieve gas sensors. The sensing layers have been studied with regard to semiconductor behaviour, surface barrier potential heights and gas sensing properties. The interaction of humidity with semiconductor oxides has been considered with the aim to compensate, using an algorithm, its effect in gas detection. Finally, nitrogen oxides monitoring, contemporaneously performed in several sites of Italy, has been described.

scholarly journals Enhancing Formaldehyde Selectivity of SnO2 Gas Sensors with the ZSM-5 Modified Layers

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 3947
Author(s):  
Wei Wang ◽  
Qinyi Zhang ◽  
Ruonan Lv ◽  
Dong Wu ◽  
Shunping Zhang
Keyword(s):  
Gas Sensors ◽  
Indoor Air ◽  
High Performance ◽  
Screen Printing ◽  
Gas Sensing ◽  
Oxide Semiconductors ◽  
Screen Printing Method ◽  
Gas Sensing Properties ◽  
Zeolite Films ◽  
Insufficient Knowledge

High performance formaldehyde gas sensors are widely needed for indoor air quality monitoring. A modified layer of zeolite on the surface of metal oxide semiconductors results in selectivity improvement to formaldehyde as gas sensors. However, there is insufficient knowledge on how the thickness of the zeolite layer affects the gas sensing properties. In this paper, ZSM-5 zeolite films were coated on the surface of the SnO2 gas sensors by the screen printing method. The thickness of ZSM-5 zeolite films was controlled by adjusting the numbers of screen printing layers. The influence of ZSM-5 film thickness on the performance of ZSM-5/SnO2 gas sensors was studied. The results showed that the ZSM-5/SnO2 gas sensors with a thickness of 19.5 μm greatly improved the selectivity to formaldehyde, and reduced the response to ethanol, acetone and benzene at 350 °C. The mechanism of the selectivity improvement to formaldehyde of the sensors was discussed.

scholarly journals Atmospheric pressure chemical vapour deposition of fluorine-doped tin(IV) oxide from fluoroalkyltin precursors

2005 ◽  
Vol 19 (5) ◽  
pp. 644-657 ◽  
Author(s):  
Joanne E. Stanley ◽  
Anthony C. Swain ◽  
Kieran C. Molloy ◽  
David W. H. Rankin ◽  
Heather E. Robertson ◽  
...  
Keyword(s):  
Chemical Vapour Deposition ◽  
Atmospheric Pressure ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Pressure Chemical

Atmospheric pressure chemical vapour deposition of F doped SnO2 for optimum performance solar cells

2009 ◽  
Vol 517 (10) ◽  
pp. 3061-3065 ◽  
Author(s):  
D.W. Sheel ◽  
H.M. Yates ◽  
P. Evans ◽  
U. Dagkaldiran ◽  
A. Gordijn ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chemical Vapour Deposition ◽  
Atmospheric Pressure ◽  
Vapour Deposition ◽  
Chemical Vapour ◽  
Optimum Performance ◽  
Pressure Chemical
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