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1.
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11 p, 2.8 MB |
3D BiTe Interconnected Nanowire Networks to Increase Thermoelectric Efficiency
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Ruiz-Clavijo, Alejandra (Instituto de Micro y Nanotecnología) ;
Caballero-Calero, Olga (Instituto de Micro y Nanotecnología) ;
Manzano, Cristina V. (Instituto de Micro y Nanotecnología) ;
Maeder, Xavier (Swiss Federal Laboratories for Materials Science and Technology) ;
Beardo Ricol, Albert (Universitat Autònoma de Barcelona. Departament de Física) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Àlvarez Calafell, Francesc Xavier (Universitat Autònoma de Barcelona. Departament de Física) ;
Martín-González, Marisol (Instituto de Micro y Nanotecnología)
3D interconnected nanowire scaffoldings are shown to increase the thermoelectric efficiency in comparison to similar diameter 1D nanowires and films grown under similar electrodeposition conditions. BiTe 3D nanonetworks offer a reduction in thermal conductivity (κ) while preserving the high electrical conductivity of the films. [...]
2021 -  10.1021/acsaem.1c02129
ACS Applied Energy Materials, Vol. 4, Issue 12 (December 2021) , p. 13556-13566
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2.
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1 p, 668.6 KB |
Author Correction : Impact of pore anisotropy on the thermal conductivity of porous Si nanowires
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Ferrando-Villalba, Pablo (Universitat Autònoma de Barcelona. Departament de Física) ;
D'Ortenzi, L. (Istituto Nazionale di Ricerca Metrologica) ;
Dalkiranis Pereira, Gustavo Gonçalves (Universitat Autònoma de Barcelona. Departament de Física) ;
Cara, Eleonora (Istituto Nazionale di Ricerca Metrologica) ;
Lopeandía Fernández, Aitor (Universitat Autònoma de Barcelona. Departament de Física) ;
Abad, Llibertat (Institut de Ciència de Materials de Barcelona) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
De Leo, N. (Istituto Nazionale di Ricerca Metrologica) ;
Saghi, Zineb (Istituto Nazionale di Ricerca Metrologica) ;
Jacob, M.. (University of Grenoble) ;
Gambacorti, N. (University of Grenoble) ;
Boarino, L. (Istituto Nazionale di Ricerca Metrologica) ;
Rodríguez-Viejo, Javier, dir. (Universitat Autònoma de Barcelona. Departament de Física)
2018 - 10.1038/s41598-018-32320-6
Scientific reports, Vol. 8 (October 2018) , art. 15033
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3.
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19 p, 12.9 MB |
Scattering in Terms of Bohmian Conditional Wave Functions for Scenarios with Non-Commuting Energy and Momentum Operators
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Villani, Matteo (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Albareda, Guillermo (Universitat de Barcelona. Institut de Química Teòrica i Computacional) ;
Destefani, Carlos Fernando (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Oriols, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Without access to the full quantum state, modeling quantum transport in mesoscopic systems requires dealing with a limited number of degrees of freedom. In this work, we analyze the possibility of modeling the perturbation induced by non-simulated degrees of freedom on the simulated ones as a transition between single-particle pure states. [...]
2021 - 10.3390/e23040408
Entropy, Vol. 23, Issue 4 (March 2021) , art. 408
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4.
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10 p, 3.5 MB |
Phonon Engineering in Twinning Superlattice Nanowires
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De Luca, Marta (Universität Basel. Departement Physik) ;
Fasolato, Claudia (Università degli Studi di Perugia. Dipartimento di Fisica e Geologia) ;
Verheijen, Marcel A. (Eindhoven University of Technology. Departament of Applied Physics) ;
Ren, Yizhen (Eindhoven University of Technology. Departament of Applied Physics) ;
Swinkels, Milo Y. (Universität Basel. Departement Physik) ;
Kölling, Sebastian (Eindhoven University of Technology. Departament of Applied Physics) ;
Bakkers, Erik P. A. M. (Eindhoven University of Technology. Departament of Applied Physics) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Zardo, Ilaria (Universität Basel. Departement Physik)
One of the current challenges in nanoscience is tailoring the phononic properties of a material. This has long been a rather elusive task because several phonons have wavelengths in the nanometer range. [...]
2019 - 10.1021/acs.nanolett.9b01775
Nano letters, Vol. 19, Num. 7 (July 2019) , p. 4702-4711
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5.
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10 p, 2.3 MB |
Phonon transport across crystal-phase interfaces and twin boundaries in semiconducting nanowires
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Carrete, Jesús (Technische Universität Wien. Institute of Materials Chemistry) ;
López-Suárez, Miquel. (Institut de Ciència de Materials de Barcelona) ;
Raya Moreno, Martí (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Bochkarev, Anton S. (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Royo Valls, Miquel (Institut de Ciència de Materials de Barcelona) ;
Madsen, Georg Kent Hellerup (Technische Universität Wien. Institute of Materials Chemistry) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Mingo, Natalio (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona)
We combine state-of-the-art Green's-function methods and nonequilibrium molecular dynamics calculations to study phonon transport across the unconventional interfaces that make up crystal-phase and twinning superlattices in nanowires. [...]
2019 - 10.1039/c9nr05274g
Nanoscale, Vol. 11, issue 34 (2019) , p. 16007-16016
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6.
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5 p, 1.9 MB |
Heat transport through a solid-solid junction : The interface as an autonomous thermodynamic system
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Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Colombo, Luciano (Institut Català de Nanociència i Nanotecnologia) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Øivind, Wilhelmsen (SINTEF Energy Research) ;
Trinh, Thuat T. (Norwegian University of Science and Technology. Department of Chemistry) ;
Bedeaux, Dick (Norwegian University of Science and Technology. Department of Chemistry) ;
Kjelstrup, Signe (Norwegian University of Science and Technology. Department of Chemistry)
We perform computational experiments using nonequilibrium molecular dynamics simulations, showing that the interface between two solid materials can be described as an autonomous thermodynamic system. [...]
2016 - 10.1039/c6cp01872f
Physical chemistry chemical physics, Vol. 18, Issue 20 (May 2016) , p. 13741-13745
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7.
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9 p, 2.0 MB |
Impact of pore anisotropy on the thermal conductivity of porous Si nanowires
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Ferrando-Villalba, Pablo (Universitat Autònoma de Barcelona. Departament de Física) ;
D'Ortenzi, L. (Istituto Nazionale di Ricerca Metrologica) ;
Dalkiranis Pereira, Gustavo Gonçalves (Universitat Autònoma de Barcelona. Departament de Física) ;
Cara, Eleonora (Istituto Nazionale di Ricerca Metrologica) ;
Lopeandía Fernández, Aitor (Universitat Autònoma de Barcelona. Departament de Física) ;
Abad, Llibertat (Institut de Ciència de Materials de Barcelona) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
De Leo, N. (Istituto Nazionale di Ricerca Metrologica) ;
Saghi, Zineb (Istituto Nazionale di Ricerca Metrologica) ;
Jacob, M.. (University of Grenoble) ;
Gambacorti, N. (University of Grenoble) ;
Boarino, L. (Istituto Nazionale di Ricerca Metrologica) ;
Rodríguez-Viejo, Javier, dir. (Universitat Autònoma de Barcelona. Departament de Física)
Porous materials display enhanced scattering mechanisms that greatly infuence their transport properties. Metal-assisted chemical etching (MACE) enables fabrication of porous silicon nanowires starting from a doped Si wafer by using a metal template that catalyzes the etching process. [...]
2018 - 10.1038/s41598-018-30223-0
Scientific reports, Vol. 8 (2018) , p. 12796
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8.
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17 p, 2.0 MB |
Thermal boundary resistance in semiconductors by non-equilibrium thermodynamics
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Dettori, Riccardo (University of Cagliari. Department of Physics) ;
Melis, Claudio (University of Cagliari. Department of Physics) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Colombo, Luciano (Institut Català de Nanociència i Nanotecnologia)
We critically address the problem of predicting the thermal boundary resistance at the interface between two semiconductors by atomistic simulations. After reviewing the available models, lattice dynamics calculations and molecular dynamics simulation protocols, we reformulate this problem in the language of non-equilibrium thermodynamics, providing an elegant, robust and valuable theoretical framework for the direct calculation of the thermal boundary resistance through molecular dynamics simulations. [...]
2016 - 10.1080/23746149.2016.1175317
Advances in Physics: X, Vol. 1, Issue 2 (May 2016) , p. 246-261
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9.
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8 p, 743.4 KB |
Ptsi clustering in silicon probed by transport spectroscopy
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Mongillo, Massimo (Commissariat à l'énergie atomique et aux énergies alternatives. Institute for Nanoscience and Cryogenics) ;
Spathis, Panayotis (Commissariat à l'énergie atomique et aux énergies alternatives. Institute for Nanoscience and Cryogenics) ;
Katsaros, Georgios (Commissariat à l'énergie atomique et aux énergies alternatives. Institute for Nanoscience and Cryogenics) ;
De Franceschi, Silvano (Commissariat à l'énergie atomique et aux énergies alternatives. Institute for Nanoscience and Cryogenics) ;
Gentile, Pascal (Commissariat à l'énergie atomique et aux énergies alternatives. Institute for Nanoscience and Cryogenics) ;
Rurali, Riccardo (Institut de Ciència de Materials de Barcelona) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Metal silicides formed by means of thermal annealing processes are employed as contact materials in microelectronics. Control of the structure of silicide/silicon interfaces becomes a critical issue when the characteristic size of the device is reduced below a few tens of nanometers. [...]
2014 - 10.1103/PhysRevX.3.041025
Physical Review, Vol. 3, issue. 4 (Dec. 2014) , art. e041025
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10.
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7 p, 1.1 MB |
Full-field thermal imaging of quasiballistic crosstalk reduction in nanoscale devices
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Ziabari, Amirkoushyar (Birck Nanotechnology Center) ;
Torres, Pol (Universitat Autònoma de Barcelona. Departament de Física) ;
Vermeersch, Bjorn (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Xuan, Yi (Birck Nanotechnology Center) ;
Cartoixà Soler, Xavier (Universitat Autònoma de Barcelona. Departament de Física) ;
Torelló, Alvar (Universitat Autònoma de Barcelona. Departament de Física) ;
Bahk, Je-Hyeong (Birck Nanotechnology Center) ;
Koh, Yee Rui (Birck Nanotechnology Center) ;
Parsa, Maryam (Purdue University. Electrical and Computer Engineering) ;
Ye, Peide D. (Birck Nanotechnology Center) ;
Àlvarez Calafell, Francesc Xavier (Universitat Autònoma de Barcelona. Departament de Física) ;
Shakouri, Ali (Birck Nanotechnology Center)
Understanding nanoscale thermal transport is of substantial importance for designing contemporary semiconductor technologies. Heat removal from small sources is well established to be severely impeded compared to diffusive predictions due to the ballistic nature of the dominant heat carriers. [...]
2018 - 10.1038/s41467-017-02652-4
Nature communications, Vol. 9 (Jan. 2018) , art. 255
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