Three-dimensional structure of helical and zigzagged nanowires using electron tomography.

Kim, Han Sung; Hwang, Seon Oh; Myung, Yoon; Park, Jeunghee; Bae, Seung Yong; Ahn, Jae Pyoung · Nano Lett · 2008

basic_science · Level V

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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.

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