Tapered optical fiber coated with graphene based nanomaterials for measurement of ethanol concentrations in water

Girei Saad H.; Shabaneh Atafat A.; Ngee-Lim HongHamidon Mohd N.Mahdi Mohd A.Yaacob Mohd H.

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Tapered optical fiber coated with graphene based nanomaterials for measurement of ethanol concentrations in water

机译：Tapered optical fiber coated with graphene based nanomaterials for measurement of ethanol concentrations in water

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Tapered optical fibers coated with graphene and graphene oxide (GO) as the active layer for ethanol sensing were reported. The multimode optical fiber with 125 mu m diameter was tapered to 40 mu m diameter to enhance the sensitivity. Graphene and GO thin films were characterized using a scanning electron microscopy, Raman spectroscopy and ultraviolet-visible (UV-Vis) spectroscopy. The absorbance properties of the developed sensors increased when exposed to ethanol due to the change of light in the evanescent field. The sensing results indicated that the GO-coated sensor showed better performance with absorbance change of 80 towards ethanol concentration of 5 when compared to graphene-coated sensor with 40 absorbance change towards ethanol with similar concentrations. The reliable response of the graphene and GO-coated on tapered fibers for detecting ethanol concentrations was achieved at room temperature.

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来源
《Optical review》 |2015年第3期|385-392|共8页
作者
Girei Saad H.; Shabaneh Atafat A.; Ngee-Lim HongHamidon Mohd N.Mahdi Mohd A.Yaacob Mohd H.;
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作者单位

Univ Putra Malaysia, Wireless {L-End}& Photon Network Res Ctr, Upm Serdang 43400, Selangor Darul, Malaysia;

Univ Putra Malaysia, Fac Sci, Dept Chem, Upm Serdang 43400, Selangor Darul, Malaysia;

Univ Putra Malaysia, Inst Adv Technol, Upm Serdang 43400, Selangor Darul, Malaysia;

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原文格式 PDF
正文语种英语
中图分类光学;
关键词
Graphene; Optical fiber sensor; Absorbance; Ethanol sensor; Tapered optical fiber;

Tapered optical fiber coated with graphene based nanomaterials for measurement of ethanol concentrations in water

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