Abstract
We study heat transport in bulk/nanoporous/bulk silicon devices; we show that, despite bulk/nanoporous devices may act as thermal rectifiers, the non-linear aspects of their joint thermal conductance are not strong enough to lead to a negative differential thermal resistance, necessary to allow bulk/nanoporous/bulk Si devices to act as thermal transistors. Furthermore, we explicitly study the effective thermal conductivity of the mentioned devices for several temperatures, geometries, porosities, and pore size. © 2012 Elsevier B.V.
Original language | English |
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Pages (from-to) | 486-490 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 377 |
DOIs | |
Publication status | Published - 4 Feb 2013 |
Keywords
- Heat rectification
- Phonon hydrodynamics
- Phononics
- Porous Si