Atomic, electronic, and transport properties of quasi-one-dimensional nanostructures

Yongqiang Xue; Abraham Hmiel; Christopher Stiles

doi:10.1117/12.795354

4 September 2008 Atomic, electronic, and transport properties of quasi-one-dimensional nanostructures

Yongqiang Xue, Abraham Hmiel, Christopher Stiles

Proceedings Volume 7037, Carbon Nanotubes and Associated Devices; 70370X (2008) https://doi.org/10.1117/12.795354
Event: NanoScience + Engineering, 2008, San Diego, California, United States

Abstract

We present theoretical study of the atomic, electronic and transport properties of silicon nanowires and single-walled carbon nanotubes using atomistic simulation. For silicon nanowires, we present investigation of the atomic structure and electronic properties of ultrathin nanowires with different surface structures and growth directions and the trend of such property variations with increasing nanowire diameters using density functional theory with both local atomic basis and plane waves. For single-walled carbon nanotubes, we present self-consistent tight-binding study of the electronic and transport properties of semiconducting carbon nanotubes in contact with metal electrodes. We discuss insights obtained from such atomistic study on the contact, and diameter dependence of junction conductance. Finally, we examine the application of single-walled carbon nanotubes as novel nanofluidic channels by analyzing the structure and kinetics of water molecules confined and transported through the nanotube channels using molecular dynamics simulation.

Citation Download Citation

Yongqiang Xue, Abraham Hmiel, and Christopher Stiles "Atomic, electronic, and transport properties of quasi-one-dimensional nanostructures", Proc. SPIE 7037, Carbon Nanotubes and Associated Devices, 70370X (4 September 2008); https://doi.org/10.1117/12.795354

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