title: V-groove SnO2 nanowire sensors: fabrication and Pt-nanoparticle decoration.
abstract: Networked SnO(2) nanowire sensors were achieved using the selective growth of SnO(2) nanowires and their tangling ability, particularly on on-chip V-groove structures, in an effort to overcome the disadvantages imposed on the conventional trench-structured SnO(2) nanowire sensors. The sensing performance of the V-groove-structured SnO(2) nanowire sensors was highly dependent on the geometrical dimension of the groove, being superior to those of their conventional trench-structured counterparts. Pt nanoparticles were decorated on the surface of the networked SnO(2) nanowires via γ-ray radiolysis to enhance the sensing performances of the V-groove sensors whose V-groove widths had been optimized. The V-groove-structured Pt-nanoparticle-decorated SnO(2) nanowire sensors exhibited outstanding and reliable sensing capabilities towards toluene and nitrogen dioxide gases, indicating their potential for use as a platform for chemical gas sensors.
authors.affiliation: School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Gun-Joo
authors.initials: GJ
authors.lastname: Sun
authors.forename: Sun-Woo
authors.initials: SW
authors.lastname: Choi
authors.forename: Sung-Hyun
authors.initials: SH
authors.lastname: Jung
authors.forename: Akash
authors.initials: A
authors.lastname: Katoch
authors.forename: Sang Sub
authors.initials: SS
authors.lastname: Kim
mesh_terms: D003217:Conductometry / Q000295:instrumentation*; D003460:Crystallization / Q000379:methods*; D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000032:analysis*; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D005740:Gases; D017971:Tin Compounds; D010984:Platinum; C045358:stannic oxide