title: Three-dimensional structure of helical and zigzagged nanowires using electron tomography.
abstract: Electron tomography and high-resolution transmission electron microscopy were used to characterize the unique three-dimensional structures of helical or zigzagged GaN, ZnGa2O4, and Zn2SnO4 nanowires. The GaN nanowires adopt a helical structure that consists of six equivalent <011> growth directions with the axial [0001] direction. We also confirmed that the ZnGa2O4 nanosprings have four equivalent <011> growth directions with the [001] axial direction. The zigzagged Zn2SnO4 nanowires consisted of linked rhombohedrons having the side edges matched to the <110> direction and the [111] axial direction.
authors.affiliation: Department of Chemistry, Korea University, Jochiwon 339-700, Korea.
authors.forename: Han Sung
authors.initials: HS
authors.lastname: Kim
authors.forename: Seon Oh
authors.initials: SO
authors.lastname: Hwang
authors.forename: Yoon
authors.initials: Y
authors.lastname: Myung
authors.forename: Jeunghee
authors.initials: J
authors.lastname: Park
authors.forename: Seung Yong
authors.initials: SY
authors.lastname: Bae
authors.forename: Jae Pyoung
authors.initials: JP
authors.lastname: Ahn
mesh_terms: D021621:Imaging, Three-Dimensional / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008854:Microscopy, Electron / Q000379:methods*; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D013499:Surface Properties; D014054:Tomography / Q000379:methods*
chemical_list: D046911:Macromolecular Substances