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Journal of Nanophotonics

Utilization of ZnO nanorods growth on a tip of plastic optical fiber toward the realization of low-cost CO and CO2 gas sensor
Author(s): Hoorieh Fallah; Mahmood Afra; Ezeddin Mohajerani; Waleed S. Mohammad
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Paper Abstract

This study experimentally demonstrates the feasibility of utilizing zinc oxide nanorods for CO and CO2 gas detection via optical scattering. ZnO nanorods are grown on a plastic optical fiber to measure the effect of gas flow on the optical scattering at room temperature. The presence of nanorods minimizes the coupling of the Fresnel reflection. Placing the optical setup in a home-built gas chamber, an obvious distinguished change of the total reflection was observed when different gas concentrations were present. Reduction of reflection due to the presence of gas indicated that forward scattering leak has a dominant effect on the process. In addition, the results demonstrated that detection of CO gas at a concentration as low as 200 ppm had a higher response in comparison with CO2 gas.

Paper Details

Date Published: 23 September 2017
PDF: 11 pages
J. Nanophoton. 11(3) 036023 doi: 10.1117/1.JNP.11.036023
Published in: Journal of Nanophotonics Volume 11, Issue 3
Show Author Affiliations
Hoorieh Fallah, Shahid Beheshti Univ. (Iran)
Mahmood Afra, Shahid Beheshti Univ. (Iran)
Ezeddin Mohajerani, Shahid Beheshti Univ. (Iran)
Waleed S. Mohammad, Bangkok Univ. (Thailand)


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