title: Selective detection of NO2 and C2H5OH using a Co3O4-decorated ZnO nanowire network sensor.
abstract: The selective detection of two different gases, NO(2) and C(2)H(5)OH, has been achieved using a p-type Co(3)O(4)-decorated n-type ZnO nanowire (NW) network sensor. The gas selectivity was explained by the catalytic effect of nanocrystalline Co(3)O(4) and the extension of the electron depletion layer via the formation of p-n junctions.
authors.affiliation: Department of Materials Science and Engineering, Korea University, Seoul 136-713, Republic of Korea.
authors.forename: Chan Woong
authors.initials: CW
authors.lastname: Na
authors.forename: Hyung-Sik
authors.initials: HS
authors.lastname: Woo
authors.forename: Il-Doo
authors.initials: ID
authors.lastname: Kim
authors.forename: Jong-Heun
authors.initials: JH
authors.lastname: Lee