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SnO2 Nanoparticle-Based Passive Capacitive Sensor for Ethylene Detection
Joint Authors
Agarwal, Mangilal
Balachandran, Mercyma D.
Shrestha, Sudhir
Varahramyan, Kody
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-03
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
A passive capacitor-based ethylene sensor using SnO2 nanoparticles is presented for the detection of ethylene gas.
The nanoscale particle size (10 nm to 15 nm) and film thickness (1300 nm) of the sensing dielectric layer in the capacitor model aid in sensing ethylene at room temperature and eliminate the need for microhotplates used in existing bulk SnO2-resistive sensors.
The SnO2-sensing layer is deposited using room temperature dip coating process on flexible polyimide substrates with copper as the top and bottom plates of the capacitor.
The capacitive sensor fabricated with SnO2 nanoparticles as the dielectric showed a total decrease in capacitance of 5 pF when ethylene gas concentration was increased from 0 to 100 ppm.
A 7 pF decrease in capacitance was achieved by introducing a 10 nm layer of platinum (Pt) and palladium (Pd) alloy deposited on the SnO2 layer.
This also improved the response time by 40%, recovery time by 28%, and selectivity of the sensor to ethylene mixed in a CO2 gas environment by 66%.
American Psychological Association (APA)
Agarwal, Mangilal& Balachandran, Mercyma D.& Shrestha, Sudhir& Varahramyan, Kody. 2012. SnO2 Nanoparticle-Based Passive Capacitive Sensor for Ethylene Detection. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-1029141
Modern Language Association (MLA)
Agarwal, Mangilal…[et al.]. SnO2 Nanoparticle-Based Passive Capacitive Sensor for Ethylene Detection. Journal of Nanomaterials No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-1029141
American Medical Association (AMA)
Agarwal, Mangilal& Balachandran, Mercyma D.& Shrestha, Sudhir& Varahramyan, Kody. SnO2 Nanoparticle-Based Passive Capacitive Sensor for Ethylene Detection. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-1029141
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029141