Title :
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
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;
Conference_Titel :
India Conference (INDICON), 2013 Annual IEEE
Conference_Location :
Mumbai
Print_ISBN :
978-1-4799-2274-1
DOI :
10.1109/INDCON.2013.6726021
