A Study of Detection Mechanism of Metal Oxide Gas Sensor Under UV Radiation

Author & Affiliation:
KAVITA MALL
Department of Electronics, DDU Gorakhpur University, Gorakhpur-273009 (India)
ABHINAV SHUKLA
Department of Electronics, DDU Gorakhpur University, Gorakhpur-273009 (India)
U.N. TRIPATHI
Department of Computer Science, DDU Gorakhpur University, Gorakhpur-273009 (India)
MANISH MISHRA (manish.ddu1976@gmail.com)
Department of Electronics, DDU Gorakhpur University, Gorakhpur-273009 (India)
Keyword:
Semiconductor Gas Sensor, Matlab, Environmental monitoring
Issue Date:
April 2018
Abstract:

The presented paper deals with the effect of UV radiation and change in rate of recombination on the operation of metal oxide gas sensors. The performance of a simple metal oxide sensor is simulated first and the relation between absorbed gas concentration and resistance is monitored in absence of UV radiation. Later, the same performance is monitored in the presence of UV radiation on the sensor with the occurrence of surface recombination phenomenon. The performances are simulated on MATLAB. The Grain boundary resistance (Rgb), neck resistance (Rn) and total resistance (R) were obtained by simulating standard equation on MATLAB software. The effect of the surface recombination on absorption of gas concentration and change in resistance is also taken into account. It has been observed that the resistance of the sensors depends on the grain size (L), flux density, absorbed gas concentration (Nr), depletion width (W).

Pages:
57-63
ISSN:
2319-8052 (Online) - 2231-3478 (Print)
Source:
DOI:
http://dx.doi.org/10.22147/jusps-B/300403
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Copy the following to cite this article:

K. Mall; A. Shukla; U. Tripathi; M. Mishra, "A Study of Detection Mechanism of Metal Oxide Gas Sensor Under UV Radiation", Journal of Ultra Scientist of Physical Sciences, Volume 30, Issue 4, Page Number 57-63, 2018

Copy the following to cite this URL:

K. Mall; A. Shukla; U. Tripathi; M. Mishra, "A Study of Detection Mechanism of Metal Oxide Gas Sensor Under UV Radiation", Journal of Ultra Scientist of Physical Sciences, Volume 30, Issue 4, Page Number 57-63, 2018

Available from: http://www.ultraphysicalsciences.org/paper/1466/

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