Mohd Hafiz Jali, .- and Hazli Rafis Abdul Rahim, .- and Sana Sulaiman Hamid, .- and Md Ashadi Md Johari, .- and Haziezol Helmi Mohd Yusof, .- and Sulaiman Wadi Harun, .- Formaldehyde Sensing Using Micro-Loop Resonator. In: THE 2ND INTERNATIONAL CONFERENCE ON PHYSICAL INSTRUMENTATION AND ADVANCED MATERIALS 2019. AIP Publishing, 22 October 2019 Surabaya, Indonesia, pp. 1-5. ISBN 2019

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Abstract

Formaldehyde (CH2O) liquid sensor has been successfully fabricated using micro-loop resonator (MLR) based on whispering gallery mode (WGM) concept. An excellent sensing response towards formaldehyde liquid concentrations level ranging from 0% to 5% was observed. It is because of the changeable effective index and surface absorption phenomenon which lead to different light characteristic inside the MLR. The output power reduced linearly from -18.9 dBm to -36.2.dBm as the concentration increases. The sensitivity obtained was 3.6561 dBm/% with linearity of 99.1% and resolution of 0.0207%. The proposed sensor has simplicity, easy fabrication, better resolution and low cost. This application is essential in monitoring toxic gases and human health.

Item Type:	Book Section
Subjects:	Q Science Q Science > Q Science (General) Q Science > QD Chemistry
Divisions:	08. Fakultas Sains dan Teknologi > Kimia
Creators:	Creators NIM Mohd Hafiz Jali, .- UNSPECIFIED Hazli Rafis Abdul Rahim, .- UNSPECIFIED Sana Sulaiman Hamid, .- UNSPECIFIED Md Ashadi Md Johari, .- UNSPECIFIED Haziezol Helmi Mohd Yusof, .- UNSPECIFIED Sulaiman Wadi Harun, .- UNSPECIFIED
Depositing User:	Mr Vega Andi Budiman
Date Deposited:	12 May 2023 09:10
Last Modified:	03 Jun 2023 07:05
URI:	http://repository.unair.ac.id/id/eprint/126006
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