Nanotech 2008 Vol. 3
Nanotech 2008 Vol. 3
Nanotechnology 2008: Microsystems, Photonics, Sensors, Fluidics, Modeling, and Simulation - Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 3

Photonics & Nanowires Chapter 1

Phonon-assisted tunnelling mechanism of conduction in SnO2 and ZnO nanowires

Authors: P. Ohlckers, P. Pipinys

Affilation: Vestfold University College, Norway

Pages: 150 - 152

Keywords: SnO2, ZnO, nanowires, conductivity: phonon-assisted tunnelling

Non-linear temperature-dependent current-voltages characteristics of SnO2 nanowires measured by Ma et al [2005 Solid State Commun 130 313] and single ZnO nanorods from {J.Y. Park et al., 2006 Nanotechnology 17 1255] are explained by the model based on phonon-assisted tunneling theory. As is shown, the phonon –assisted tunneling theory can explain well the variation of current with temperature in all measured temperature range from 10 to 200 K over a wide range of electric fields. From the fit of experimental data with theory the density of states in the interface layer is derived and electron-phonon interaction constant is estimated.

ISBN: 978-1-4200-8505-1
Pages: 940
Hardcopy: $159.95

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