Detection of formaldehyde vapor using glass substrate coated with zinc oxide nanorods

Yasin, Mohammad and Mohd Yusof, Haziezol Helmi and Jali, Mohd Hafiz and Md Johari, Md Ashadi and Dimyati, Kaharudin and Harun, Sulaiman Wadi and Khasanah, Miratul (2019) Detection of formaldehyde vapor using glass substrate coated with zinc oxide nanorods. IEEE Photonics Journal, 11 (1). pp. 1-9. ISSN 1943-0655

Text DETECTION OF FORMALDEHYDE VAPOR USING GLASS SUBSTRATE COATED WITH ZINC OXIDE NANORODS.PDF Download (2MB)

Abstract

A glass substrate coated with ZnO nanorods via a hydrothermal method for formaldehyde vapor sensing is reported. The proposed sensor device was characterized against formaldehyde vapor concentrations varying from 1% to 5% with a reference point as 0% (pure water) at room temperature. A significant sensing response was observed where the output voltage reduced by 0.0856 V via scattering effect by ZnO nanorods upon exposure to the maximum tested concentration (5%). The sensitivity and linearity of the sensing response were recorded to be approximate values of -0.0168 V/% and 98.06% correspondingly. The sensor device was found to have good measurement stability in measuring as low as 1% of concentration for a prolonged time of 600 s. This proposed sensor has potential applications in monitoring air pollution caused not only by formaldehyde vapor but also by other harmful and toxic vapors or gases.

Item Type:	Article
Uncontrolled Keywords:	Formaldehyde, Formalin, Glass substrate, Nanorods, Vapor, Zinc oxide
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	30 Jul 2020 09:43
Last Modified:	26 Jul 2023 16:36
URI:	http://eprints.utem.edu.my/id/eprint/24212
Statistic Details:	View Download Statistic

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