Display options
Cite
He Y, Donadio D, Galli G. Morphology and temperature dependence of the thermal conductivity of nanoporous SiGe. Nano Lett. 2011;11(9):3608-11doi: 10.1021/nl201359q.
He, Y., Donadio, D., & Galli, G. (2011). Morphology and temperature dependence of the thermal conductivity of nanoporous SiGe. Nano letters, 11(9), 3608-11. https://doi.org/10.1021/nl201359q
He, Yuping, et al. "Morphology and temperature dependence of the thermal conductivity of nanoporous SiGe." Nano letters vol. 11,9 (2011): 3608-11. doi: https://doi.org/10.1021/nl201359q
He Y, Donadio D, Galli G. Morphology and temperature dependence of the thermal conductivity of nanoporous SiGe. Nano Lett. 2011 Sep 14;11(9):3608-11. doi: 10.1021/nl201359q. Epub 2011 Aug 26. PMID: 21859096.
Copy Download .nbib Format: NLM
Share it on

Nano Lett. 2011 Sep 14;11(9):3608-11. doi: 10.1021/nl201359q. Epub 2011 Aug 26.

Morphology and temperature dependence of the thermal conductivity of nanoporous SiGe.

Nano letters

Yuping He, Davide Donadio, Giulia Galli

Affiliations

  1. Department of Chemistry, University of California, Davis, California 95616, United States.

PMID: 21859096 DOI: 10.1021/nl201359q

Abstract

Using molecular dynamics simulations, we show that the thermal conductivity (κ) of Si(0.5)Ge(0.5) can be reduced by more than one order of magnitude by etching nanometer-sized holes in the material, and it becomes almost constant as a function of temperature between 300 and 1100 K for samples with 1 nm wide pores. In nanoporous SiGe, thermal conduction is largely determined by mass disorder and boundary scattering, and thus the dependence of κ on pore distance and on structural, atomistic disorder is much weaker than in the case of nanoporous Si. This indicates that one may minimize κ of the alloy with less stringent morphological constraints than for pure Si.

Publication Types