Alcohol sensing properties of nanosized thick film WO3 doped with Y2O3

Author

Abadi, M. H Shahrokh ; Hamidon, M.N. ; Shaari, Abdul Halim ; Abdullah, Norhafizah ; Misron, Norhisam ; Salleh, Abu Bakar ; Wagiran, Rahman ; Malekzadeh, Mina

Author_Institution

Electr. & Electron. Dept., Univ. Putra Malaysia, Serdang

fYear

2008

fDate

25-27 Nov. 2008

Firstpage

354

Lastpage

358

Abstract

In this paper the response of printed thick-film of WO₃ doped by Y₂O₃ to organic solvent was studied. Different ratio of doping was prepared and changes of film resistance at different temperature in present of vaporized types of alcohol were observed. The results showed a high sensitivity of the film of 80.1%WO₃-18.8%Y₂O₃ to Toluene, Xylene, Methanol, and 2-Propanone (Acetone) at 250, 450, and 550degC, and higher sensitivity of 94.3%WO₃-4.7%Y₂O₃ at 350degC. Microscopic images of the samples including SEM and TEM were observed. EDX and XRD analysis onto the samples also were done.

Keywords

X-ray chemical analysis; X-ray diffraction; doping; electrical resistivity; gas sensors; scanning electron microscopy; thick film sensors; thick films; transmission electron microscopy; tungsten compounds; yttrium compounds; 2-propanone; EDX; SEM; TEM; WO₃:Y₂O₃; XRD; alcohol sensing properties; doping; methanol; organic solvent; printed thick-film; resistance; temperature 250 degC; temperature 350 degC; temperature 450 degC; temperature 550 degC; toluene; xylene; Conductivity; Doping; Electrodes; Gas detectors; Methanol; Scanning electron microscopy; Solvents; Substrates; Temperature sensors; Thick films; Gas Sensor; Thick Film; Tungsten Oxide; Yttria;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Electronics, 2008. ICSE 2008. IEEE International Conference on

Conference_Location

Johor Bahru

Print_ISBN

978-1-4244-3873-0

Electronic_ISBN

978-1-4244-2561-7

Type

conf

DOI

10.1109/SMELEC.2008.4770340

Filename

4770340