Detection of Formaldehyde Vapor Using Glass Substrate Coated With Zinc Oxide Nanorods

被引：27

作者：

Yusof, Haziezol Helmi Mohd ^{[1
,2
]}

Jali, Mohd Hafiz ^{[1
,3
]}

Johari, Md Ashadi Md ^{[1
,4
]}

Dimyati, Kaharudin ^{[1
]}

Harun, Sulaiman Wadi ^{[1
,6
]}

Khasanah, M. ^{[5
]}

Yasin, M. ^{[6
]}

机构：

[1] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia

[2] Univ Tekn Malaysia Melaka, Fac Elect & Comp Engn, Melaka 76100, Malaysia

[3] Univ Tekn Malaysia Melaka, Fac Elect Engn, Melaka 76100, Malaysia

[4] Univ Tekn Malaysia Melaka, Fac Elect & Elect Engn Technol, Melaka 76100, Malaysia

[5] Airlangga Univ, Fac Sci & Technol, Dept Chem, Surabaya 60115, Indonesia

[6] Airlangga Univ, Fac Sci & Technol, Dept Phys, Surabaya 60115, Indonesia

来源：

IEEE PHOTONICS JOURNAL | 2019年 / 11卷 / 01期

关键词：

Formaldehyde; formalin; vapor; zinc oxide; nanorods; glass substrate; GAS SENSORS; SENSING PERFORMANCE; GROWTH; FILM;

D O I：

10.1109/JPHOT.2019.2895024

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页数：9

共 45 条

[1] Simple fabrication of ZnO/Pt/chitosan electrode for enzymatic glucose biosensor [J].