18th International Conference PhysicA.SPb | |
Direct measurement of elastic modulus of InP nanowires with Scanning Probe Microscopy in PeakForce QNM mode | |
Geydt, P.^1 ; Dunaevskiy, M.^2,3 ; Alekseev, P.^2 ; Kakko, J.-P.^4 ; Haggrén, T.^4 ; Lähderanta, E.^1 ; Lipsanen, H.^4 | |
Laboratory of Physics, Lappeenranta University of Technology, Lappeenranta | |
53851, Finland^1 | |
Ioffe Physical Technical Institute, RAS, Saint-Petersburg | |
194021, Russia^2 | |
National Research University of Information Technologies, Mechanics and Optics (ITMO), Saint-Petersburg | |
197101, Russia^3 | |
Department of Micro- and Nanosciences, Micronova, Aalto University, P.O. Box 13500, Aalto | |
FI-00076, Finland^4 | |
关键词: Cone-shaped; Core-shell model; Direct measurement; Elastic properties; Measuring method; Peak-force tappings; Wurtzite phase; Zinc blende; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/769/1/012029/pdf DOI : 10.1088/1742-6596/769/1/012029 |
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来源: IOP | |
【 摘 要 】
In this manuscript, we present the study of elastic properties of InP nanowires with help of scanning probe microscope in advanced PeakForce Tapping® regime. The measuring method was developed in order to investigate the Young's modulus of these cone-shaped structures with significant accuracy. The difference in InP elasticity for wurtzite phase and zinc- blende phase was revealed. It was shown that elastic modulus of InP nanowires significantly increases from 60 GPa to more than 100 GPa when diameter of a nanowire is reduced below 50 nm. The core-shell model for InP nanowire was used for the explanation of this effect.
【 预 览 】
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Direct measurement of elastic modulus of InP nanowires with Scanning Probe Microscopy in PeakForce QNM mode | 1593KB | download |