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Synthesis and characterization of multilayered sol-gel based plastic-clad fiber optic pH sensor

Islam, Shumaila and Abdul Rahman, Rosly and Othaman, Zulkafli and Riaz, Saira and Naseem, Shahzad (2015) Synthesis and characterization of multilayered sol-gel based plastic-clad fiber optic pH sensor. Jourl Of Industrial And Engineering Chemistry, 23 . pp. 140-144. ISSN 1226-086X

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Official URL: http://dx.doi.org/10.1016/j.jiec.2014.08.007

Abstract

The fabrication and characterization of an optical fiber pH sensor for the detection range 3-11 are described. The sensing element consists of a combination of indicators encapsulated in mesoporous surfactant based hybrid matrix, which are deposited onto an uncladed plastic optical fiber. Stable, dense and uniform sol-gel cladding with more than 90% transparency in the visible range are observed. Roughness value 9.7-6.57 nm is obtained by AFM. Film thickness, refractive index, and porosity are found to vary with number of coatings, 70% porosity is determined with 116 nm thickness. The response of the sensor with third layer is observed in acid and basic medium.

Item Type:Article
Subjects:A General Works
ID Code:58858
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 12:07
Last Modified:20 Sep 2017 09:47

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