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24 p, 2.7 MB |
Excitation and detection of acoustic phonons in nanoscale systems
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Ng, Ryan C. (Institut Català de Nanociència i Nanotecnologia) ;
Sachat, Alexandros el (National Center for Scientific Research Demokritos) ;
Céspedes Mulero, Francisco (Universitat Autònoma de Barcelona. Departament de Física) ;
Poblet, Martin (Institut Català de Nanociència i Nanotecnologia) ;
Madiot, Guilhem (Institut Català de Nanociència i Nanotecnologia) ;
Jaramillo Fernández, Juliana (Institut Català de Nanociència i Nanotecnologia) ;
Florez, Omar (Universitat Autònoma de Barcelona. Departament de Física) ;
Xiao, Peng (Institut Català de Nanociència i Nanotecnologia) ;
Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ;
Sotomayor Torres, Clivia M (Institut Català de Nanociència i Nanotecnologia) ;
Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Phonons play a key role in the physical properties of materials, and have long been a topic of study in physics. While the effects of phonons had historically been considered to be a hindrance, modern research has shown that phonons can be exploited due to their ability to couple to other excitations and consequently affect the thermal, dielectric, and electronic properties of solid state systems, greatly motivating the engineering of phononic structures. [...]
2022 -  10.1039/d2nr04100f
Nanoscale, Vol. 14, issue 37 (Oct. 2022) , p. 13428-13451
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3.
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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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4.
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12 p, 2.1 MB |
Enabling full-scale grain boundary mitigation in polycrystalline perovskite solids
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Zhao, Lichen (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Tang, PengYi (Institut Català de Nanociència i Nanotecnologia) ;
Luo, Deying (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Dar, Ibrahim (University of Cambridge. Department of Physics) ;
Eickemeyer, Felix (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Arora, Neha (University of Cambridge. Department of Physics) ;
Hu, Qin (University of Massachusetts. Polymer Science and Engineering Department) ;
Luo, Jingshan (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Liu, Yuhang (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Zakeeruddin, Shaik Mohammed (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Hagfeldt, Anders (École Polytechnique Fédérale de Lausanne. Laboratory of Photomolecular Science) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Huang, Wei (Nanjing Tech University. Key Laboratory of Flexible Electronics & Institute of Advanced Materials) ;
Gong, Qihuang (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics) ;
Russell, Thomas (University of Massachusetts. Polymer Science and Engineering Department) ;
Friend, Richard Henry (University of Cambridge. Department of Physics) ;
Grätzel, Michael (École Polytechnique Fédérale de Lausanne. Laboratory of Photonics and Interfaces) ;
Zhu, Rui (Peking University. State Key Laboratory for Artificial Microstructure and Mesoscopic Physics)
There exists a considerable density of interaggregate grain boundaries (GBs) and intra-aggregate GBs in polycrystalline perovskites. Mitigation of intra-aggregate GBs is equally notable to that of interaggregate GBs as intra-aggregate GBs can also cause detrimental effects on the photovoltaic performances of perovskite solar cells (PSCs). [...]
2022 - 10.1126/sciadv.abo3733
Science advances, Vol. 8, issue 35 (Sep. 2022) , art. eabo3733
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5.
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24 p, 2.5 MB |
Cooling and self-oscillation in a nanotube electromechanical resonator
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Urgell, C. (Institut de Ciències Fotòniques) ;
Yang, Wei (Institut de Ciències Fotòniques) ;
De Bonis, Sergio Lucio (Institut de Ciències Fotòniques) ;
Samanta, Chandan (Institut de Ciències Fotòniques) ;
Esplandiu Egido, Maria José (Institut Català de Nanociència i Nanotecnologia) ;
Dong, Q. (Université Paris-Saclay. Centre de Nanosciences et de Nanotechnologies) ;
Jin, Y. (Université Paris-Saclay. Centre de Nanosciences et de Nanotechnologies) ;
Bachtold, Adrian (Institut de Ciències Fotòniques)
Nanomechanical resonators are used with great success to couple mechanical motion to other degrees of freedom, such as photons, spins and electrons. The motion of a mechanical eigenmode can be efficiently cooled into the quantum regime using photons, but not other degrees of freedom. [...]
2020 - 10.1038/s41567-019-0682-6
Nature Physics, Vol. 16 (2020) , p. 32-37
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6.
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9 p, 1.7 MB |
Intrinsic functional and architectonic heterogeneity of tumor-targeted protein nanoparticles
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Pesarrodona Roches, Mireia (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Crosas, Eva (ALBA Laboratori de Llum de Sincrotró) ;
Cubarsi, Rafael (Universitat Politècnica de Catalunya. Departament de Matemàtiques) ;
Sánchez Chardi, Alejandro (Universitat Autònoma de Barcelona. Servei de Microscòpia) ;
Saccardo, Paolo (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Unzueta Elorza, Ugutz (Institut d'Investigació Biomèdica Sant Pau) ;
Rueda, Fabian (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Sánchez García, Laura 1992- (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Serna, Naroa (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Mangues, Ramon 1957- (Institut d'Investigació Biomèdica Sant Pau) ;
Ferrer-Miralles, Neus (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Vázquez Gómez, Esther (Universitat Autònoma de Barcelona. Institut de Biotecnologia i de Biomedicina "Vicent Villar Palasí") ;
Villaverde Corrales, Antonio (Universitat Autònoma de Barcelona. Departament de Genètica i de Microbiologia) ;
Universitat Autònoma de Barcelona
Self-assembling proteins are gaining attention as building blocks for application-tailored nanoscale materials. This is mostly due to the biocompatibility, biodegradability, and functional versatility of peptide chains. [...]
2017 - 10.1039/c6nr09182b
Nanoscale, Vol. 9, issue 19 (May 2017) , p. 6427-6435
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7.
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7 p, 2.4 MB |
Flexoelectric MEMS : Towards an electromechanical strain diode
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Bhaskar, Umesh K. (Institut Català de Nanociència i Nanotecnologia) ;
Banerjee, N. (University of Twente) ;
Abdollahi, Amir (Institut Català de Nanociència i Nanotecnologia) ;
Solanas, E. (Lyncée Tec SA) ;
Rijnders, G. (University of Twente) ;
Catalan, Gustau (Institut Català de Nanociència i Nanotecnologia)
Piezoelectricity and flexoelectricity are two independent but not incompatible forms of electromechanical response exhibited by nanoscale ferroelectrics. Here, we show that flexoelectricity can either enhance or suppress the piezoelectric response of the cantilever depending on the ferroelectric polarity and lead to a diode-like asymmetric (two-state) electromechanical response.
2016 - 10.1039/c5nr06514c
Nanoscale, Vol. 8, Issue 3 (January 2016) , p. 1293-1298
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25 p, 1.1 MB |
Real space demonstration of induced crystalline 3D nanostructuration of organic layers
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Paradinas Aranjuelo, Marcos (Institut de Ciència de Materials de Barcelona) ;
Pérez Rodríguez, Ana (Institut de Ciència de Materials de Barcelona) ;
Barrena, Esther (Institut de Ciència de Materials de Barcelona) ;
Ocal García, Carmen (Institut de Ciència de Materials de Barcelona)
The controlled 3D nanostructuration of molecular layers of the semiconducting molecules CH (pentacene) and N,N'-dioctyl-3,4,9,10-perylene tetracarboxylic diimide (PTCDI-C8) is addressed. A tip-assisted method using atomic force microscopy (AFM) is developed for removing part of the organic material and relocating it in up to six layer thick nanostructures. [...]
2018 - 10.1021/acs.jpcb.7b05342
Journal of physical chemistry B, Vol. 122, issue 2 (Jan. 2018) , p. 633-639
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7 p, 792.8 KB |
Nanoscale coordination polymers obtained in ultrasmall liquid droplets on solid surfaces and its comparison to different synthetic volume scales
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Bellido Vera, Elena (Institut Català de Nanociència i Nanotecnologia) ;
Gonzalez Monje, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Guardingo Melián, Mireia (Institut Català de Nanociència i Nanotecnologia) ;
Novio Vázquez, Fernando (Institut Català de Nanociència i Nanotecnologia) ;
Sánchez, A. (Universidad de Costa Rica. Centro de Electroquímica y Energía Química) ;
Montero, Mavis (Universidad de Costa Rica. Centro de Electroquímica y Energía Química) ;
Molnar, G. (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination) ;
Bousseksou, Azzedine (Centre national de la recherche scientifique (França). Laboratoire de Chimie de Coordination) ;
Ruiz-Molina, Daniel (Institut Català de Nanociència i Nanotecnologia)
Synthesis of coordination polymers at femtolitre scales assisted by an AFM tip has become an area of increasing interest due to the astonishing range of implications that derive from it, from gaining basic knowledge of confined reactions in femtolitre droplets to the fabrication of molecular-based devices. [...]
2016 - 10.1039/c6ra14368g
RSC advances, Vol. 6, Issue 80 (July 2016) , p. 76666-76672
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8 p, 1.2 MB |
Characterizing nanoparticles reactivity : structure-photocatalytic activity relationship
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Piella, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Bastús, Neus G. (Institut Català de Nanociència i Nanotecnologia) ;
Casals, Eudald (Hospital Universitari Vall d'Hebron. Institut de Recerca) ;
Puntes, Víctor (Institut Català de Nanociència i Nanotecnologia)
Nanoparticles are reactive, and their final interactions with the surrounding media are ultimately determined by their reactivity, which in turns depends on the nanoparticles morphology, surface chemistry and environment in which they are embedded. [...]
2013 - 10.1088/1742-6596/429/1/012040
Journal of physics, Vol. 429,conference 1 (2013) , art. 12040
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