title: Room temperature SnO2 thin film gas sensor fabricated on Si nanospikes.
abstract: 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.
authors.affiliation: Department of Physics, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854, USA.
authors.forename: H B
authors.initials: HB
authors.lastname: Huo
authors.forename: C
authors.initials: C
authors.lastname: Wang
authors.forename: F D
authors.initials: FD
authors.lastname: Yan
authors.forename: H Z
authors.initials: HZ
authors.lastname: Ren
authors.forename: M Y
authors.initials: MY
authors.lastname: Shen