Pore-size dependence of the thermal conductivity of porous silicon: A phonon hydrodynamic approach

F. X. Alvarez, D. Jou, A. Sellitto

Research output: Contribution to journalArticleResearchpeer-review

90 Citations (Scopus)

Abstract

Phonon hydrodynamics is used to analyze the influence of porosity and of pore size on reduction in thermal conductivity in porous silicon, with respect to crystalline silicon. The expressions predict that the thermal conductivity is lower for higher porosity and for smaller pore radius, as a consequence of phonon ballistic effects. The theoretical results describe experimental data better than the assumption that they only depend on porosity. © 2010 American Institute of Physics.
Original languageEnglish
Article number033103
JournalApplied Physics Letters
Volume97
DOIs
Publication statusPublished - 19 Jul 2010

Fingerprint Dive into the research topics of 'Pore-size dependence of the thermal conductivity of porous silicon: A phonon hydrodynamic approach'. Together they form a unique fingerprint.

Cite this