Title :
Effect of phonon confinement on heat dissipation in ridges
Author :
Chapuis, P-O ; Prunnila, M. ; Shchepetov, A. ; Schneider, L. ; Laakso, S. ; Ahopelto, J. ; Torres, C. M Sotomayor
Author_Institution :
Inst. Catala de Nanotecnol. (ICN), Centre d´´Investig. en Nanociencia e Nanotecnol. (CIN2), UAB, Bellaterra, Spain
Abstract :
We have investigated experimentally the effect of lateral confinement of acoustic phonons in ridges as a function of the temperature. Electrical methods are used to generate phonons in 100nm large nanostructures and to probe the nanostructure temperature in the same time, what allows tracking the heat flux generated and its possible deviation from Fourier diffusive heat conduction. We compare our results with those of a recent theoretical paper based on the ballistic-diffusive equations.
Keywords :
ballistic transport; cooling; diffusion; elemental semiconductors; nanostructured materials; phonons; silicon; Fourier diffusive heat conduction; Si; acoustic phonons; heat dissipation; nanostructures; phonon confinement; ridges; Heating; Phonons; Silicon; Temperature measurement; Thermal conductivity; Thermal resistance;
Conference_Titel :
Thermal Investigations of ICs and Systems (THERMINIC), 2010 16th International Workshop on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-8453-9
