Enhanced hydrogen sensitivity and selectivity of ZnO-SnO2 based sensor

Author

Mondal, Bikromadittya ; Roychaudhury, C. ; Das, Joydeep ; Ghosh, Sudip ; Saha, Hiranmay

Author_Institution

Dept. of Electron. & Commun. Eng., Tezpur Univ., Tezpur, India

fYear

2013

fDate

13-15 Dec. 2013

Firstpage

1

Lastpage

4

Abstract

We report on the fabrication of pure Zinc Oxide (ZnO) and composite ZnO-SnO₂ material based H₂ sensor using a simple chemical route. The surface morphology and crystal structure of the samples were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The gas sensing performance of the sensor to Hydrogen in dry air was studied using current-voltage measurements. Selectivity of the sensor against carbon mono-oxide is studied. The obtained result demonstrates a promising approach in the development of low cost selective hydrogen sensor.

Keywords

II-VI semiconductors; X-ray diffraction; composite materials; crystal structure; electrical conductivity; gas sensors; hydrogen; scanning electron microscopy; surface morphology; tin compounds; wide band gap semiconductors; zinc compounds; H₂; SEM; X-ray diffraction; XRD; ZnO-SnO₂; composite material based H₂ sensor fabrication; crystal structure; current-voltage measurement; dry air; gas sensing performance; hydrogen selectivity enhancement; hydrogen sensitivity enhancement; hydrogen sensor; scanning electron microscopy; simple chemical route; surface morphology; Hydrogen; Resistance; Temperature sensors; Zinc oxide; Hydrogen; ZnO-SnO2 sensor; selectivity;

fLanguage

English

Publisher

ieee

Conference_Titel

India Conference (INDICON), 2013 Annual IEEE

Conference_Location

Mumbai

Print_ISBN

978-1-4799-2274-1

Type

conf

DOI

10.1109/INDCON.2013.6726021

Filename

6726021