title: NO gas sensing kinetics at room temperature under UV light irradiation of In2O3nanostructures.
abstract: In2O3nanostructure sensors were fabricated by arc-discharging a source composed of a graphite tube containing indium. The NO gas sensing properties, as well as the morphology, structure, and electrical properties, were examined at room temperature under UV light illumination. In particular, the response and recovery kinetics of the sensor at room temperature under various UV light intensities were studied. The maximum response signal was observed at an intermediate UV light intensity, which could be corroborated by a nano-size effect based on the conduction model of a resistive chemical nano sensor. The mechanism for the enhanced adsorption/desorption kinetics for NO in an air environment under UV light irradiation is discussed in detail. Furthermore, the general requirements of the sensor, including the stability, repeatability, and selectivity, are discussed.
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Nguyen Duc
authors.initials: ND
authors.lastname: Chinh
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Nguyen Duc
authors.initials: ND
authors.lastname: Quang
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Hyundong
authors.initials: H
authors.lastname: Lee
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Truong
authors.initials: T
authors.lastname: Thi Hien
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Nguyen Minh
authors.initials: NM
authors.lastname: Hieu
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Dahye
authors.initials: D
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Chunjoong
authors.initials: C
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
authors.forename: Dojin
authors.initials: D
authors.lastname: Kim