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1.
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37 p, 2.3 MB |
Disentangling phonon channels in nanoscale heat transport
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Mukherjee, Samik (École Polytechnique de Montréal. Département de génie physique) ;
Wajs, Marcin (École Polytechnique de Montréal. Département de génie physique) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Givan, Uri (Max Planck Institute of Microstructure Physics) ;
Senz, Stephan (Max Planck Institute of Microstructure Physics) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Francoeur, Sebastien (École Polytechnique de Montréal. Département de génie physique) ;
Moutanabbir, Oussama (École Polytechnique de Montréal. Département de génie physique)
Phonon surface scattering has been at the core of heat transport engineering in nanoscale devices. Herein, we demonstrate that this phonon pathway can be the sole mechanism only below a critical, size-dependent temperature. [...]
2021 -  10.1103/PhysRevB.104.075429
Physical review B, Vol. 104, issue 7 (August 2021) , art. 75429
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2.
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9 p, 8.2 MB |
Tuning transport properties in thermoelectric nanocomposites through inorganic ligands and heterostructured building blocks
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Ibáñez, Maria (EMPA-Swiss Federal Laboratories for Materials Science and Technology) ;
Genç, Aziz (Institut Català de Nanociència i Nanotecnologia) ;
Hasler, Roger (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
Liu, Yu (Institute of Science and Technology Austria) ;
Dobrozhan, Oleksandr (Institut de Recerca en Energia de Catalunya) ;
Nazarenko, Olga (Empa-Swiss Federal Laboratories for Materials Science and Technology) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya) ;
Kovalenko, Maksym V. (ETH Zürich. Department of Chemistry and Applied Biosciences)
Methodologies that involve the use of nanoparticles as "artificial atoms" to rationally build materials in a bottom-up fashion are particularly well-suited to control the matter at the nanoscale. Colloidal synthetic routes allow for an exquisite control over such "artificial atoms" in terms of size, shape, and crystal phase as well as core and surface compositions. [...]
2019 - 10.1021/acsnano.9b00346
ACS nano, Vol. 13, Issue 6 (June 2019) , p. 6572-6580
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3.
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36 p, 1.5 MB |
Growth of Au-Pd2Sn Nanorods via Galvanic Replacement and Their Catalytic Performance on Hydrogenation and Sonogashira Coupling Reactions
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Nafria, Raquel (Institut de Recerca en Energia de Catalunya) ;
Luo, Zhishan (Institut de Recerca en Energia de Catalunya) ;
Ibáñez, Maria (EMPA-Swiss Federal Laboratories for Materials Science and Technology) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Yu, Xiaoting (Institut de Recerca en Energia de Catalunya) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Llorca, Jordi (Universitat Politècnica de Catalunya. Departament d'Enginyeria Química) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Kovalenko, Maksym V. (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Grabulosa, Arnald (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica) ;
Muller, Guillermo (Universitat de Barcelona. Departament de Química Inorgànica i Orgànica) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Colloidal PdSn and Au-PdSn nanorods (NRs) with tuned size were produced by the reduction of Pd and Sn salts in the presence of size- and shape-controlling agents and the posterior growth of Au tips through a galvanic replacement reaction. [...]
2018 - 10.1021/acs.langmuir.8b02023
Langmuir, Vol. 34, Issue 36 (September 2018) , p. 10634-10643
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5.
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28 p, 1.9 MB |
Reduction of Thermal Conductivity in Nanowires by Combined Engineering of Crystal Phase and Isotope Disorder
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Mukherjee, Samik (Polytechnique Montréal. Département de génie physique) ;
Givan, Uri (Max Planck Institute of Microstructure Physics) ;
Senz, Stephan (Max Planck Institute of Microstructure Physics) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Moutanabbir, Oussama (École Polytechnique de Montréal. Department of Engineering Physics)
Nanowires are a versatile platform to investigate and harness phonon and thermal transport phenomena in nanoscale systems. With this perspective, we demonstrate herein the use of crystal phase and mass disorder as effective degrees of freedom to manipulate the behavior of phonons and control the flow of local heat in silicon nanowires. [...]
2018 - 10.1021/acs.nanolett.8b00612
Nano letters, Vol. 18, Issue 5 (May 2018) , p. 3066-3075
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6.
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17 p, 1.5 MB |
Optical Analysis of Oxygen Self-Diffusion in Ultrathin CeO2 Layers at Low Temperatures
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Neuderth, Paula (Justus Liebig University Giessen) ;
Hille, Pascal (University Bremen. Institute of Solid State Physics) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Coll, Mariona (Institut de Ciència de Materials de Barcelona) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Eickhoff, Martin (University of Bremen. Institut für Festkörperphysik)
An optical in situ strategy for the analysis of oxygen diffusion in ultrathin ceria layers with a thickness of 2-10 nm at temperatures between 50 and 200 °C is presented, which allows for the determination of diffusion coefficients. [...]
2018 - 10.1002/aenm.201802120
Advanced Energy Materials, Vol. 8, Issue 29 (October 2018) , art. 1802120
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7.
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13 p, 8.2 MB |
The Role of polarity in nonplanar semiconductor nanostructures
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De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Zamani, Reza (École Polytechnique Fédérale de Lausanne. Interdisciplinary Center for Electron Microscopy) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Eickhoff, Martin (University of Bremen. Institut für Festkörperphysik) ;
Xiong, Qihua (Nanyang Technological University. School of Physical and Mathematical Sciences) ;
Fontcuberta i Morral, Anna (École Polytechnique Fédérale de Lausanne) ;
Caroff, Philippe (Delft University of Technology) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
The lack of mirror symmetry in binary semiconductor compounds turns them into polar materials, where two opposite orientations of the same crystallographic direction are possible. Interestingly, their physical properties (e. [...]
2019 - 10.1021/acs.nanolett.9b00459
Nano letters, Vol. 19, issue 6 (June 2019) , p. 3396-3408
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8.
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19 p, 432.5 KB |
Growth and luminescence of polytypic InP on epitaxial graphene
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Mukherjee, Samik (Polytechnique Montréal. Département de génie physique) ;
Nateghi, Nima (Polytechnique Montréal. Département de génie physique) ;
Jacobberger, Robert M. (University of Wisconsin-Madison. Department of Materials Science and Engineering) ;
Bouthillier, Etienne (Polytechnique Montréal. Département de génie physique) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Coenen, Toon (DELMIC BV) ;
Cardinal, Dhan (Université de Montréal. Département de chimie) ;
Levesque, Pierre (Université de Montréal. Département de chimie) ;
Desjardins, Patrick (Polytechnique Montréal. Département de génie physique) ;
Martel, Richard (Université de Montréal. Département de chimie) ;
Arnold, Michael S. (University of Wisconsin-Madison. Department of Materials Science and Engineering) ;
Moutanabbir, Oussama (Polytechnique Montréal. Département de génie physique)
Van der Waals epitaxy is an attractive alternative to direct heteroepitaxy where the forced coherency at the interface cannot sustain large differences in lattice parameters and thermal expansion coefficients between the substrate and the epilayer. [...]
2018 - 10.1002/adfm.201705592
Advanced functional materials, Vol. 28, issue 8 (Feb. 2018) , art. 1705592
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9.
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19 p, 1.0 MB |
Passivation layers for nanostructured photoanodes : Ultra-thin oxides on InGaN nanowires
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Neuderth, Paula (Justus Liebig University Giessen) ;
Hille, Pascal (University of Bremen. Institute of Solid State Physics) ;
Schörmann, Jörg (Justus Liebig University Giessen) ;
Frank, A. (Justus Liebig University Giessen) ;
Reitz, C. (Karlsruhe Institute of Technology) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Coll, Mariona (Institut de Ciència de Materials de Barcelona) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Marschall, R. (Justus Liebig University Giessen) ;
Eickhoff, Martin (University of Bremen)
An experimental strategy for systematically assessing the influence of surface passivation layers on the photocatalytic properties of nanowire photoanodes by combining photocurrent analysis, photoluminescence spectroscopy and high resolution transmission electron microscopy with a systematic variation of sample structure and the surrounding electrolyte is demonstrated. [...]
2018 - 10.1039/c7ta08071a
Journal of materials chemistry, Vol. 6, Issue 2 (January 2018) , p. 565-573
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10.
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8 p, 2.8 MB |
Surface hydrogen enables subeutectic vapor-liquid-solid semiconductor nanowire growth
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Sivaram, Saujen V. (Georgia Institute of Technology. School of Chemical and Biomolecular Engineering) ;
Hui, Ho Yee (Georgia Institute of Technology. School of Chemical and Biomolecular Engineering) ;
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Filler, Michael A. (Georgia Institute of Technology. School of Chemical and Biomolecular Engineering)
Vapor-liquid-solid nanowire growth below the bulk metal-semiconductor eutectic temperature is known for several systems; however, the fundamental processes that govern this behavior are poorly understood. [...]
2016 - 10.1021/acs.nanolett.6b01640
Nano letters, Vol. 16, issue 11 (Sep. 2016) , p. 6717-6723
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