Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 12, Number 1, 2016
|
|
---|---|---|
Article Number | 22 | |
Number of page(s) | 6 | |
DOI | https://doi.org/10.1186/s41476-016-0024-6 | |
Published online | 10 November 2016 |
Research
Reduced Graphene Oxide nano-composites layer on fiber optic tip sensor reflectance response for sensing of aqueous ethanol
1
Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400UPM, Serdang, Selangor, Malaysia
2
Communication Technology Section, Universiti Kuala Lumpur-British Malaysia Institute, GOMBAK, 53100, Kuala Lumpur, Malaysia
3
Research Centre of Excellence for Wireless and Photonic Network, Faculty of Engineering, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
4
Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, UPM, 43400, Serdang, Selangor, Malaysia
5
Physics Department, Low Dimensional Materials Research Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
a
+603-8946 644
anwarulspeaker@gmail.com
Received:
30
June
2016
Accepted:
27
October
2016
In this study, the used of tapered optical fiber tip as sensors coated with reduced Graphene Oxide (rGO) is investigated. The resultant rGO nanocomposites coated on the tapered fiber sensor were characterized by X-ray Diffraction (XRD), Raman spectroscopy, and field emission scanning electron microscopy (FESEM). Optimization of the rGO layer and the tapering parameters are found and the sensing capability of the device is tested using different concentrations of ethanol in water. The nanocomposite layer improved the performance of the sensor by demonstrating high sensitivity to aqueous ethanol when interrogated in the visible region using a spectrometer in the optical wavelength range of 500–700 nm. The reflectance response of the rGO coated fiber tip reduced linearly, upon exposure to ethanol concentrations ranging between 20-80 %.
Key words: Reduced graphene oxide / Optical fiber sensor / Reflectance
© The Author(s) 2016
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