Room temperature SnO2 thin film gas sensor fabricated on Si nanospikes.
The SnO2 thin film CO gas sensors have been fabricated on silicon nanostructured surface made using a femtosecond pulsed laser irradiation. The measurement shows a significant response to the CO gas at room temperature. While a SnO2 sensor fabricated on a flat surface shows no response when CO gas exists at room temperature. The high area/volume ratio and sharp structures of the nanospikes enhance the sensitivity of SnO2 at room temperature.
Huo
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HB
Department of Physics, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, USA.
Wang
C
C
Yan
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Ren
H Z
HZ
Shen
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MY