Resultats globals: 5 registres trobats en 0.02 segons.
Articles, 5 registres trobats
Articles 5 registres trobats  
1.
9 p, 2.7 MB Tuning Thermal Transport in Ultrathin Silicon Membranes by Surface Nanoscale Engineering / Neogi, Sanghamitra (Max Planck Institute for Polymer Research) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Pereira, Luiz Felipe C. (Universidade Federal Do Rio Grande Do Norte. Departamento de Fisica Teorica e Experimental) ; Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Wagner, Markus R. (Institut Català de Nanociència i Nanotecnologia) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Donadio, Davide (Max Planck Institute for Polymer Research)
A detailed understanding of the connections of fabrication and processing to structural and thermal properties of low-dimensional nanostructures is essential to design materials and devices for phononics, nanoscale thermal management, and thermoelectric applications. [...]
2015 - 10.1021/nn506792d
ACS Nano, Vol. 9, Issue 4 (April 2015) , p. 3820-3828  
2.
13 p, 1.2 MB Acoustic phonon propagation in ultra-thin Si membranes under biaxial stress field / Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Gomis Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We report on stress induced changes in the dispersion relations of acoustic phonons propagating in 27 nm thick single crystalline Si membranes. The static tensile stress (up to 0. 3 GPa) acting on the Si membranes was achieved using an additional strain compensating silicon nitride frame. [...]
2014 - 10.1088/1367-2630/16/7/073024
New journal of physics, Vol. 16 (July 2014) , art. 73024  
3.
23 p, 540.5 KB Reconstructing phonon mean-free-path contributions to thermal conductivity using nanoscale membranes / Cuffe, John (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Eliason, Jeffrey Kristian (Massachusetts Institute of Technology. Department of Chemistry) ; Maznev, Alex A. (Massachusetts Institute of Technology. Department of Chemistry) ; Collins, Kimberlee C. (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Johnson, Jeremiah A. (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Chen, Gang (Massachusetts Institute of Technology. Department of Mechanical Engineering) ; Nelson, Keith A. (Massachusetts Institute of Technology. Department of Chemistry)
Knowledge of the mean-free-path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. We demonstrate that thermal conductivity measurements of thin membranes spanning a wide thickness range can be used to characterize how bulk thermal conductivity is distributed over phonon mean free paths. [...]
2015 - 10.1103/PhysRevB.91.245423
Physical Review B, Vol. 91, Issue 24 (June 2015) , art. 245423  
4.
20 p, 2.2 MB Nanophononics : State of the art and perspectives / Volz, Sebastian (Laboratoire d'Energétique Moléculaire et Macroscopique) ; Ordóñez Miranda, José (Laboratoire d'Energétique Moléculaire et Macroscopique) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Pezeril, Thomas (Université du Maine) ; Vaudel, Gwenaelle (Université du Maine) ; Gusev, Vitaly (Université du Maine) ; Ruello, Pascal (Université du Maine) ; Weig, Eva M. (University of Konstanz. Department of Physics) ; Schubert, Martin (University of Konstanz. Department of Physics) ; Hettich, Mike (University of Konstanz. Department of Physics) ; Grossman, Martin (University of Konstanz. Department of Physics) ; Dekorsy, Thomas (University of Konstanz. Department of Physics) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Wagner, Markus R. (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Xiong, Shiyun (Max Planck Institute for Polymer Research) ; Neogi, Sanghamitra (University of Colorado Boulder) ; Donadio, Davide (Donostia International Physics Center)
Understanding and controlling vibrations in condensed matter is emerging as an essential necessity both at fundamental level and for the development of a broad variety of technological applications. Intelligent design of the band structure and transport properties of phonons at the nanoscale and of their interactions with electrons and photons impact the efficiency of nanoelectronic systems and thermoelectric materials, permit the exploration of quantum phenomena with micro- and nanoscale resonators, and provide new tools for spectroscopy and imaging. [...]
2016 - 10.1140/epjb/e2015-60727-7
The European Physical Journal. B, Condensed Matter and Complex Systems, Vol. 89, Issue 1 (January 2016) , art. 15  
5.
7 p, 884.6 KB Reduction of the thermal conductivity in free-standing silicon nano-membranes investigated by non-invasive Raman thermometry / Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Reparaz, Juan Sebastián (Institut Català de Nanociència i Nanotecnologia) ; Gomis Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Wagner, Markus R. (Institut Català de Nanociència i Nanotecnologia) ; Cuffe, John (Massachusetts Institute of Technology) ; Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Shchepetov, Andrey (VTT Technical Research Centre of Finland) ; Jiang, Hua (Aalto University School of Science) ; Prunnila, Mika (VTT Technical Research Centre of Finland) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We report on the reduction of the thermal conductivity in ultra-thin suspended Si membranes with high crystalline quality. A series of membranes with thicknesses ranging from 9 nm to 1. 5 μm was investigated using Raman thermometry, a novel contactless technique for thermal conductivity determination. [...]
2014 - 10.1063/1.4861796
APL Materials, Vol. 2, Issue 1 (January 2014) , art. 12113  

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