title: A novel gas ionization sensor using Pd nanoparticle-capped ZnO.
abstract: A novel gas ionization sensor using Pd nanoparticle-capped ZnO (Pd/ZnO) nanorods as the anode is proposed. The Pd/ZnO nanorod-based sensors, compared with the bare ZnO nanorod, show lower breakdown voltage for the detected gases with good sensitivity and selectivity. Moreover, the sensors exhibit stable performance after more than 200 tests for both inert and active gases. The simple, low-cost, Pd/ZnO nanorod-based field-ionization gas sensors presented in this study have potential applications in the field of gas sensor devices.
authors.affiliation: Department of Physics, Wuhan University, Wuhan 430072, China. balu7015@hotmail.com.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Wang
authors.forename: Changwei
authors.initials: C
authors.lastname: Zou
authors.forename: Canxin
authors.initials: C
authors.lastname: Tian
authors.forename: Lin
authors.initials: L
authors.lastname: Zhou
authors.forename: Zesong
authors.initials: Z
authors.lastname: Wang
authors.forename: Dejun
authors.initials: D
authors.lastname: Fu