Ion-beam-induced bending of freestanding amorphous nanowires: The importance of the substrate material and charging

Ion-beam irradiation offers great flexibility and controllability in the construction of freestanding nanostructures with multiple advanced functionalities. Here, we present and discuss the bending of free-standing nanowires, against, towards, and ultimately parallel to a flux of directional ion irr...

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Bibliographic Details
Published in:Applied physics letters 2013-05, Vol.102 (21)
Main Authors: Cui, Ajuan, Fenton, J. C., Li, Wuxia, Shen, Tiehan H., Liu, Zhe, Luo, Qiang, Gu, Changzhi
Format: Article
Language:English
Subjects:
AMORPHOUS STATE
BENDING
ELECTROSTATICS
FLEXIBILITY
INTERACTIONS
ION BEAMS
IRRADIATION
MATERIALS SCIENCE
NANOSCIENCE AND NANOTECHNOLOGY
QUANTUM WIRES
SUBSTRATES
TUNGSTEN
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Summary:Ion-beam irradiation offers great flexibility and controllability in the construction of freestanding nanostructures with multiple advanced functionalities. Here, we present and discuss the bending of free-standing nanowires, against, towards, and ultimately parallel to a flux of directional ion irradiation. Bending components both along and perpendicular to the incident ion beam were observed, and the bending behavior was found to depend both on the ion beam scanning strategy and on the conductivity of the supporting substrate. This behavior is explained by an ion-irradiation-related electrostatic interaction. Our findings suggest the prospect of exploiting this technique to engineer 3D nanostructures for advanced applications.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4807663