DocumentCode :
3306713
Title :
DC/AC Characterizations of WO3 Sensor of Ethanol: Mechanisms of Detection
Author :
Labidi, A. ; Lambert-Mauriat, C. ; Jacolin, C. ; Aguir, K. ; Labidi, Ah. ; Maaref, M.
Author_Institution :
FST St Jerome, Univ. Paul Cezanne, Marseille
fYear :
2005
fDate :
Oct. 30 2005-Nov. 3 2005
Firstpage :
1384
Lastpage :
1387
Abstract :
In this work, both direct current (DC) and alternating current (AC) measurements were used in order to better understand the mechanisms of detection of ethanol by sensors based on polycrystalline WO3 thin films. Firstly, DC characterizations confirmed that ethanol was oxidized by the oxygen pre-adsorbed on the WO3 surface. Secondly, AC measurements coupled with a simple RC-model showed that this reaction occurred mainly on the surface of the grains
Keywords :
chemical sensors; organic compounds; polymers; thin film devices; tungsten compounds; DC-AC characterization; WO3; alternating current measurement; direct current measurement; ethanol sensor; polycrystalline thin film; Chemical sensors; Current measurement; Ethanol; Inorganic materials; Magnetic sensors; Semiconductor materials; Sensor phenomena and characterization; Spectroscopy; Sputtering; Thin film sensors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensors, 2005 IEEE
Conference_Location :
Irvine, CA
Print_ISBN :
0-7803-9056-3
Type :
conf
DOI :
10.1109/ICSENS.2005.1597967
Filename :
1597967
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=3306713
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