Mechanical properties of gold nanowires prepared by nanoskiving approach

Abstract

The nanoskiving method based on nanocutting process is a new, low cost and easy way to machine nanowires. In this study, this technique is used to machine Au nanowires with different cutting directions and depths. Young's modulus and the yield strength of nanowires are then measured by an atomic force microscope-based three-point bending test. Results show that the Young's modulus of nanowires is independent of size and is not affected by cutting directions. However, the yield strength of nanowires machined by parallel cutting (NWs-b) is 42–64% higher than that machined by perpendicular cutting (NWs-a).