Observatorio de I+D+i UPM

Memorias de investigación
Book chapters:
Thermal Transport in Semiconductor Nanowires
Year:2012
Research Areas
  • Physics chemical and mathematical,
  • Electronic technology and of the communications
Information
Abstract
We present herein a review of the thermal transport in semiconductor NWs. The main experimental achievements are presented, both smooth and surface engineered NWs, also alloyed NWs are considered; these data evidence the relevance of the thermal transport problem in these one dimensional structures. These experimental data, though scarce, permit a certain degree of contrast of the theoretical models. According to this we present a critical overview of the main theoretical approaches to the problem of the thermal conductivity of semiconductor NWs following a historic sequence. Along this way, we review a large number of models, among others the classical approaches based on the Callaway formalism, atomistic models based on molecular dynamics simulations, or the hydrodynamic approaches.One revises the contribution of the different resistive phonon scattering processes.Also, the role of normal scattering processes is discussed, as well as the recent consideration of the scattering by optic phonons. Special attention is paid to the boundary scattering which is the main cause for the thermal conductivity suppression in semiconductor NWs. The role of engineered surfaces is also discussed.
International
Si
10.5772/52588
Book Edition
1
Book Publishing
InTech Europe
ISBN
978-953-51-0898-6
Series
Book title
Nanowires - Recent Advances Editor: Xihong Peng
From page
231
To page
260
Participants
  • Autor: J. Anaya (U. Valladolid)
  • Autor: J. Jiménez (U. Valladolid)
  • Autor: Tomas Rodriguez Rodriguez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Conectividad
  • Departamento: Tecnología Electrónica
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