Moh. Yasin and Irawati, N. and Sulaiman Wadi Harun and Ahmad, F. and Khasanah, M. (2019) Sodium nitrate (NaNO3) sensor based on graphene coated microfiber. Measurement: Journal of the International Measurement Confederation, 146. pp. 208-214.

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Abstract

We demonstrate the coating of graphene onto the silica optical microfiber sensor for improving sodium nitrate detection at room temperature. The graphene obtained from graphene- polylactic acid filament was coated onto the microfiber based on drop casting technique. In the proposed sensor, the graphene acts as cladding to interact with analyte as well as functions to trap either sodium cation or nitrate anion and increases the effective refractive index of the cladding. The proposed sensor shows a good sensitivity of 1.29 dBm/ and resolution of 0.049. The sensitivity, repeatababilty and reversible response of the sensor were improved by the coating of graphene layer. The presence of graphene on the surface microfiber works as passive cladding and influence the light propagation through the microfiber. © 2019 Elsevier Ltd

Item Type:	Article
Additional Information:	cited By 3
Uncontrolled Keywords:	Carbon nanotubes; Chemical sensors; Coatings; Fiber optics; Food safety; Graphene; Microfibers; Nitrates; Optical fibers; Refractive index; Silica; Yarn, Bio-chemical sensor; Effective refractive index; Graphene layers; Micro-fiber; Nitrate anions; Nitrate detections; Poly lactic acid; Sodium cations, Sodium nitrate
Divisions:	Artikel Ilmiah > SCOPUS INDEXED JOURNAL
Creators:	Creators NIM Moh. Yasin UNSPECIFIED Irawati, N. UNSPECIFIED Sulaiman Wadi Harun UNSPECIFIED Ahmad, F. UNSPECIFIED Khasanah, M. UNSPECIFIED
Depositing User:	Ika Rudianto
Last Modified:	31 Dec 2020 14:24
URI:	http://repository.unair.ac.id/id/eprint/102332
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