title: Tin-oxide nanotubes for gas sensor application fabricated using SWNTs as a template.
abstract: We develop a simple method to synthesize nano tube or wire structure of tin-oxide for gas sensor application. It is realized by the rheotaxial growth and thermal oxidation (RGTO) of tin on porous single-wall carbon nanotubes (SWNTs) as a template. The morphology and chemical property of thus formed nanostructures are examined. The electrical and NO(x) gas sensing properties are also investigated. The sensor exhibits a fast response time of less than 100 seconds and a good recovery. A sensing response of 23,400% to 10 ppm concentration at 200 degrees C is observed.
authors.affiliation: Department of Materials Science and Engineering, Chungnam National University, Daejeon 305-764, Korea.
authors.forename: Nguyen Duc
authors.initials: ND
authors.lastname: Hoa
authors.forename: Nguyen Van
authors.initials: NV
authors.lastname: Quy
authors.forename: Myungchan
authors.initials: M
authors.lastname: An
authors.forename: Hyejin
authors.initials: H
authors.lastname: Song
authors.forename: Youngjin
authors.initials: Y
authors.lastname: Kang
authors.forename: Yousuk
authors.initials: Y
authors.lastname: Cho
authors.forename: Dojin
authors.initials: D
authors.lastname: Kim