Nanotech 2010

Real-Time Electro-Mechanical-Themal Coupling in One-Dimensional Materials

R.S. Yassar, H. Ghassemi, A. Ashtana, Y.K. Yap
Michigan Technological University, US

Keywords: nanomaterials, in situ, microscopy

Abstract:

One-dimensional nanomaterials including nanotubes, nanowires, and nanofibers are building blocks for constructing various complex nanodevices. In this work, the coupling of electrical, thermal, and mechanical fields in individual nanotubes and nanofibers will be performed inside a high-resolution transmission electron microscope (TEM) using a novel piezo-driven atomic force microscope (AFM) and scanning tunneling microscope (STM)–TEM holder. The electrical and mechanical properties of individual nanotubes/nanofibers are obtained from the experimentally recorded I-V and force-displacement curves. Failure and deformation of various nanostructures including ZnO nanowires, BN nanotubes, carbon nanotubes, and cellulose nanocrystals show distinct behavior.
 
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