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Zinc oxide nanobelts by RF sputtering for ethanol sensor by Supab Choopun; Niyom Hongsith; Pongsri Mangkorntong; Nikorn Mangkorntong is a Physics and Astronomy article available to read on EtoBox.

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Zinc oxide nanobelts were RF sputtered onto a copper tube. Their nanostructure has been confirmed by FE-SEM and Raman spectroscopy. The copper tube coated with these ZnO nanobelts was then employed as an ethanol gas sensor. To characterize the sensor, experiments with ethanol at concentration levels of 50–2000ppm and at operating temperatures ranging from 200 to 290°C were performed. The sensitivity and response time of the sensor's resistance for several ethanol concentrations and operating temperatures was determined. The relationship between the sensor's sensitivity and ethanol concentration level suggests that the adsorbed oxygen species at the sensor's surface is O2−.

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Author

Supab Choopun; Niyom Hongsith; Pongsri Mangkorntong; Nikorn Mangkorntong

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 1386-9477)

Published

2007

Language

EN

Field

Physics and Astronomy (Physical Sciences)