Quantitative determination of contributions to the thermoelectric power factor in Si nanostructures.

@article{Ryu2010QuantitativeDO,
  title={Quantitative determination of contributions to the thermoelectric power factor in Si nanostructures.},
  author={Hyuk Ju Ryu and Zlatan Aksamija and Deborah M. Paskiewicz and Shelley A Scott and Max G. Lagally and Irena Knezevic and Mark A. Eriksson},
  journal={Physical review letters},
  year={2010},
  volume={105 25},
  pages={256601}
}
We report thermoelectric measurements on a silicon nanoribbon in which an integrated gate provides strong carrier confinement and enables tunability of the carrier density over a wide range. We find a significantly enhanced thermoelectric power factor that can be understood by considering its behavior as a function of carrier density. We identify the underlying mechanisms for the power factor in the nanoribbon, which include quantum confinement, low scattering due to the absence of dopants, and… CONTINUE READING