Aspect ratio dependence of the elastic properties of ZnO nanobelts

Marcel Lucas; Wenjie Mai; Rusen Yang; Zhong Lin Wang; Elisa Riedo

doi:10.1021/nl070310g

Aspect ratio dependence of the elastic properties of ZnO nanobelts

Marcel Lucas, Wenjie Mai, Rusen Yang, Zhong Lin Wang, Elisa Riedo

Mechanical Engineering

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125 Scopus citations

Abstract

The Young's modulus of ZnO nanobelts was measured with an atomic force microscope by means of the modulated nanoindentation method. The elastic modulus was found to depend strongly on the width-to-thickness ratio of the nanobelt, decreasing from about 100 to 10 GPa, as the width-to-thickness ratio increases from 1.2 to 10.3. This surprising behavior is explained by a growth-direction-dependent aspect ratio and the presence of stacking faults in nanobelts growing along particular directions.

Original language	English (US)
Pages (from-to)	1314-1317
Number of pages	4
Journal	Nano letters
Volume	7
Issue number	5
DOIs	https://doi.org/10.1021/nl070310g
State	Published - May 2007

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abstract = "The Young's modulus of ZnO nanobelts was measured with an atomic force microscope by means of the modulated nanoindentation method. The elastic modulus was found to depend strongly on the width-to-thickness ratio of the nanobelt, decreasing from about 100 to 10 GPa, as the width-to-thickness ratio increases from 1.2 to 10.3. This surprising behavior is explained by a growth-direction-dependent aspect ratio and the presence of stacking faults in nanobelts growing along particular directions.",

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AU - Mai, Wenjie

AU - Yang, Rusen

AU - Wang, Zhong Lin

AU - Riedo, Elisa

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AB - The Young's modulus of ZnO nanobelts was measured with an atomic force microscope by means of the modulated nanoindentation method. The elastic modulus was found to depend strongly on the width-to-thickness ratio of the nanobelt, decreasing from about 100 to 10 GPa, as the width-to-thickness ratio increases from 1.2 to 10.3. This surprising behavior is explained by a growth-direction-dependent aspect ratio and the presence of stacking faults in nanobelts growing along particular directions.

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Aspect ratio dependence of the elastic properties of ZnO nanobelts

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