Nano Ag-Doped In2O3 Thick Film : A Low-Temperature H2S Gas Sensor
Joint Authors
Kajale, D. D.
Patil, G. E.
Jain, G. H.
Chavan, D. N.
Gaikwad, V. B.
Khanna, P. K.
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-10-23
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Thick films of AR grade In2O3 were prepared by standard screen-printing technique.
The gas sensing performances of thick films were tested for various gases.
It showed maximum sensitivity to ethanol vapour at 350°C for 80 ppm concentration.
To improve the sensitivity and selectivity of the film towards a particular gas, In2O3 sensors were surface-modified by dipping them in a solution of 2% nanosilver for different intervals of time.
Obtained results indicated that spherical nano-Ag grains are highly dispersed on the surface of In2O3sensor.
The surface area of the nano-Ag/ In2O3 sensor is several times larger than that of pure In2O3 sensor.
In comparison with pure In2O3 sensor, all of the nano-Ag-doped sensors showed better sensing performance in respect of response, selectivity, and optimum operating temperature.
The surface-modified (30 min) In2O3 sensor showed larger sensitivity to H2S gas (10 ppm) at 100°C.
Nano silver on the surface of the film shifts the reactivity of film from ethanol vapour to H2S gas.
A systematic study of gas sensing performance of the sensor indicates the key role played by the nano silver species on the surface.
The sensitivity, selectivity, response, and recovery time of the sensor were measured and presented.
American Psychological Association (APA)
Chavan, D. N.& Patil, G. E.& Kajale, D. D.& Gaikwad, V. B.& Khanna, P. K.& Jain, G. H.. 2011. Nano Ag-Doped In2O3 Thick Film : A Low-Temperature H2S Gas Sensor. Journal of Sensors،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-501041
Modern Language Association (MLA)
Chavan, D. N.…[et al.]. Nano Ag-Doped In2O3 Thick Film : A Low-Temperature H2S Gas Sensor. Journal of Sensors No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-501041
American Medical Association (AMA)
Chavan, D. N.& Patil, G. E.& Kajale, D. D.& Gaikwad, V. B.& Khanna, P. K.& Jain, G. H.. Nano Ag-Doped In2O3 Thick Film : A Low-Temperature H2S Gas Sensor. Journal of Sensors. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-501041
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-501041