Application of graphene oxide based Microfiber-Knot resonator for relative humidity sensing

Azzuhri, Saaidal Razalli and Amiri, Iraj Sadegh and Zulkhairi, Aiman Syahirah and Salim, Muhammad Aizi Mat and Razak, Mohd Zulhakimi Ab and Khyasudeen, Muhammad Farris and Ahmad, Harith and Zakaria, Rozalina and Yupapin, Preecha Promphan (2018) Application of graphene oxide based Microfiber-Knot resonator for relative humidity sensing. Results in Physics, 9. pp. 1572-1577. ISSN 2211-3797

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Official URL: https://doi.org/10.1016/j.rinp.2018.05.009

Abstract

A relative humidity (RH) sensor is proposed and demonstrated using a micro-knot resonator (MKR) enhanced with a layer graphene oxide (GO) coating. The MKR is fabricated by means of tapering a standard fiber, with the GO coating added by the drop-cast method. The proposed sensor is tested for an RH range of between 0% and 80% at 20% intervals, and the configurations with and without the GO coating achieve sensitivities of 0.0104 nm/% and 0.0095 nm/%, respectively. The MKR configuration without the GO coating has a linear response correlation coefficient of 0.9098 and a resolution of 0.1%, while the configuration with the GO coating has a linear response correlation coefficient of 0.9548 and a resolution of 0.096% which is better. The proposed sensor has multiple applications, especially in the area of climate and atmospheric measurement and monitoring.

Item Type: Article
Uncontrolled Keywords: Microfiber; Resonator; Humidity sensor
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Computer Science & Information Technology
Deputy Vice Chancellor (Research & Innovation) Office > Photonics Research Centre
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 17 Sep 2019 08:13
Last Modified: 17 Sep 2019 08:13
URI: http://eprints.um.edu.my/id/eprint/22387

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