Abstract
A nanowire is an extremely thin wire with a diameter on the order of a few nanometers and with lengths orders of magnitude larger than its diameter. The physical properties of nanowires at this scale are expected to deviate significantly from the bulk metal, due to confinement and surface effects. For example, the electrical conductivity of the wires changes considerably, due to the drastic increase in the surface-to-volume ratio, which can be exploited for sensing. Mechanical properties, such as the yield strength, are important parameters that need to be characterized for applications like flexible circuits. In order to study the nanowire properties one needs to arrange them on a surface in a controlled way.
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Notes
- 1.
Thermal expansion of KaptonTM is numbered in the range of \(30\mbox{ \textendash }60 \times1{0}^{-6}\,{\mathrm{K}}^{-1}\). From experience, the KaptonTM foils show rather the lower value of \(30 \times1{0}^{-6}\,{\mathrm{K}}^{-1}\) which is used for further calculations.
- 2.
Originally, the discrepancy between the theoretical yield stress and the experimentally observed yield stresses of polycrystalline samples led to the introduction of dislocations. In reverse, the theoretical yield strength is achievable only for dislocation-free or defect-weak specimens like single crystals or whiskers.
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MacKenzie, R., Auzelyte, V., Olliges, S., Spolenak, R., Solak, H.H., Vörös, J. (2009). Nanowire Development and Characterization for Applications in Biosensing. In: Nanosystems Design and Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4419-0255-9_7
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DOI: https://doi.org/10.1007/978-1-4419-0255-9_7
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