Multiple sensor array based on pure and surface modified WO3 thin films for e-nose application

C. P. Goyal; N. S. Ramgir; P. K. Sharma; N. Datta; S. Kailasaganapathi; M. Kaur; A. K. Debnath; F. Z. Haque; D. K. Aswal; S. K. Gupta

doi:10.1063/1.4810677

Multiple sensor array based on pure and surface modified WO₃ thin films for e-nose application

C. P. Goyal, N. S. Ramgir, P. K. Sharma, N. Datta, S. Kailasaganapathi, M. Kaur, A. K. Debnath, F. Z. Haque, D. K. Aswal, S. K. Gupta

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Citations (Scopus)

Abstract

A 2 × 3 sensor array based on pure, Au and CuO modified (two of each kind) WO₃ films was fabricated for e-nose application. Effect of surface modification has been investigated and correlated with the observed sensor response values. The sensor array was able to detect H ₂S,NH₃ and NO selectively based on the sensor response pattern exhibited by the sensor array. WO₃ sensor film modified with CuO exhibited a maximum sensitivity towards H₂S (S = 92, 10 ppm, 250°C) while pure WO₃ films exhibited better sensing characteristics towards NO (S=2.3, 10 ppm, 300°C) and NH₃ (S=4.5, 50 ppm, 300°C). The shape of the curve remains unaltered by the change in the concentration of the gas. The shape and position of the combined response curve could be used to determine an unknown gas both qualitatively and quantitatively.

Original language	English
Title of host publication	Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013
Publisher	American Institute of Physics Inc.
Pages	1215-1216
Number of pages	2
Volume	1536
ISBN (Print)	9780735411609
DOIs	https://doi.org/10.1063/1.4810677
Publication status	Published (in print/issue) - 18 Jul 2013
Event	International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013 - Bikaner, Rajasthan, India Duration: 1 Feb 2013 → 2 Feb 2013

Conference

Conference	International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013
Country/Territory	India
City	Bikaner, Rajasthan
Period	1/02/13 → 2/02/13

Keywords

Electronic nose
Gas Sensing
Sputtering
Surface Modifications
Thin Films
WO

Access to Document

10.1063/1.4810677

Cite this

Goyal, C. P., Ramgir, N. S., Sharma, P. K., Datta, N., Kailasaganapathi, S., Kaur, M., Debnath, A. K., Haque, F. Z., Aswal, D. K., & Gupta, S. K. (2013). Multiple sensor array based on pure and surface modified WO₃ thin films for e-nose application. In Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013 (Vol. 1536, pp. 1215-1216). American Institute of Physics Inc.. https://doi.org/10.1063/1.4810677

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title = "Multiple sensor array based on pure and surface modified WO3 thin films for e-nose application",

abstract = "A 2 × 3 sensor array based on pure, Au and CuO modified (two of each kind) WO3 films was fabricated for e-nose application. Effect of surface modification has been investigated and correlated with the observed sensor response values. The sensor array was able to detect H 2S,NH3 and NO selectively based on the sensor response pattern exhibited by the sensor array. WO3 sensor film modified with CuO exhibited a maximum sensitivity towards H2S (S = 92, 10 ppm, 250°C) while pure WO3 films exhibited better sensing characteristics towards NO (S=2.3, 10 ppm, 300°C) and NH3 (S=4.5, 50 ppm, 300°C). The shape of the curve remains unaltered by the change in the concentration of the gas. The shape and position of the combined response curve could be used to determine an unknown gas both qualitatively and quantitatively.",

keywords = "Electronic nose, Gas Sensing, Sputtering, Surface Modifications, Thin Films, WO",

author = "Goyal, {C. P.} and Ramgir, {N. S.} and Sharma, {P. K.} and N. Datta and S. Kailasaganapathi and M. Kaur and Debnath, {A. K.} and Haque, {F. Z.} and Aswal, {D. K.} and Gupta, {S. K.}",

year = "2013",

month = jul,

day = "18",

doi = "10.1063/1.4810677",

language = "English",

isbn = "9780735411609",

volume = "1536",

pages = "1215--1216",

booktitle = "Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013",

publisher = "American Institute of Physics Inc.",

note = "International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013 ; Conference date: 01-02-2013 Through 02-02-2013",

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Goyal, CP, Ramgir, NS, Sharma, PK, Datta, N, Kailasaganapathi, S, Kaur, M, Debnath, AK, Haque, FZ, Aswal, DK & Gupta, SK 2013, Multiple sensor array based on pure and surface modified WO₃ thin films for e-nose application. in Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013. vol. 1536, American Institute of Physics Inc., pp. 1215-1216, International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013, Bikaner, Rajasthan, India, 1/02/13. https://doi.org/10.1063/1.4810677

Multiple sensor array based on pure and surface modified WO₃ thin films for e-nose application. / Goyal, C. P.; Ramgir, N. S.; Sharma, P. K. et al.
Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013. Vol. 1536 American Institute of Physics Inc., 2013. p. 1215-1216.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Ramgir, N. S.

AU - Sharma, P. K.

AU - Datta, N.

AU - Kailasaganapathi, S.

AU - Kaur, M.

AU - Debnath, A. K.

AU - Haque, F. Z.

AU - Aswal, D. K.

AU - Gupta, S. K.

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N2 - A 2 × 3 sensor array based on pure, Au and CuO modified (two of each kind) WO3 films was fabricated for e-nose application. Effect of surface modification has been investigated and correlated with the observed sensor response values. The sensor array was able to detect H 2S,NH3 and NO selectively based on the sensor response pattern exhibited by the sensor array. WO3 sensor film modified with CuO exhibited a maximum sensitivity towards H2S (S = 92, 10 ppm, 250°C) while pure WO3 films exhibited better sensing characteristics towards NO (S=2.3, 10 ppm, 300°C) and NH3 (S=4.5, 50 ppm, 300°C). The shape of the curve remains unaltered by the change in the concentration of the gas. The shape and position of the combined response curve could be used to determine an unknown gas both qualitatively and quantitatively.

AB - A 2 × 3 sensor array based on pure, Au and CuO modified (two of each kind) WO3 films was fabricated for e-nose application. Effect of surface modification has been investigated and correlated with the observed sensor response values. The sensor array was able to detect H 2S,NH3 and NO selectively based on the sensor response pattern exhibited by the sensor array. WO3 sensor film modified with CuO exhibited a maximum sensitivity towards H2S (S = 92, 10 ppm, 250°C) while pure WO3 films exhibited better sensing characteristics towards NO (S=2.3, 10 ppm, 300°C) and NH3 (S=4.5, 50 ppm, 300°C). The shape of the curve remains unaltered by the change in the concentration of the gas. The shape and position of the combined response curve could be used to determine an unknown gas both qualitatively and quantitatively.

KW - Electronic nose

KW - Gas Sensing

KW - Sputtering

KW - Surface Modifications

KW - Thin Films

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BT - Proceeding of International Conference on Recent Trends in Applied Physics and Material Science, RAM 2013

PB - American Institute of Physics Inc.

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Y2 - 1 February 2013 through 2 February 2013

ER -