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Dynamic response of tapered optical multimode fiber coated with carbon nanotubes for ethanol sensing application


Citation

Shabaneh, Arafat Abdallah Abdelwadod and Girei, Saad Hayatu and M. Thirunavakkarasu, Punithavathi and Mahdi, Mohd Adzir and Abdul Rashid, Suraya and Paiman, Suriati and Yaacob, Mohd. Hanif (2015) Dynamic response of tapered optical multimode fiber coated with carbon nanotubes for ethanol sensing application. Sensors, 15 (5). pp. 10452-10464. ISSN 1424-8220

Abstract

Ethanol is a highly combustible chemical universally designed for biomedical applications. In this paper, optical sensing performance of tapered multimode fiber tip coated with carbon nanotube (CNT) thin film towards aqueous ethanol with different concentrations is investigated. The tapered optical multimode fiber tip is coated with CNT using drop-casting technique and is annealed at 70 °C to enhance the binding of the nanomaterial to the silica fiber tip. The optical fiber tip and the CNT sensing layer are micro-characterized using FESEM and Raman spectroscopy techniques. When the developed sensor was exposed to different concentrations of ethanol (5% to 80%), the sensor reflectance reduced proportionally. The developed sensors showed high sensitivity, repeatability and fast responses (<55 s) towards ethanol.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Faculty of Science
DOI Number: https://doi.org/10.3390/s150510452
Publisher: MDPI AG
Keywords: Carbon nanotubes; Ethanol sensing; Reflectance; Tapered optical fiber
Depositing User: Nabilah Mustapa
Date Deposited: 26 Apr 2016 02:08
Last Modified: 23 Oct 2019 07:51
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/s150510452
URI: http://psasir.upm.edu.my/id/eprint/34629
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