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Articles, 48 registres trobats
Llibres i col·leccions, 1 registres trobats
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Articles 48 registres trobats  1 - 10següentfinal  anar al registre:
1.
12 p, 2.7 MB Exploring the Potential of Green Hydrogen Production and Application in the Antofagasta Region of Chile / Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Castro-Alvarez, Alejandro (Universidad de La Frontera. Centro de Excelencia en Medicina Traslacional (Chile)) ; Sapunar, Nicolás (Centro de Investigación Científico y Tecnológico de la Región de Antofagasta) ; Henríquez, Francisco (Centro de Investigación Científico y Tecnológico de la Región de Antofagasta) ; Saavedra, Javier (Centro de Investigación Científico y Tecnológico de la Región de Antofagasta) ; Rodríguez, Sebastián (Hoyka Energia) ; Cornejo, Iván (Universidad Técnica Federico Santa María) ; Maxwell, Lindley (Centro de Investigación Científico y Tecnológico de la Región de Antofagasta)
Green hydrogen is gaining increasing attention as a key component of the global energy transition towards a more sustainable industry. Chile, with its vast renewable energy potential, is well positioned to become a major producer and exporter of green hydrogen. [...]
2023 - 10.3390/en16114509
Energies, Vol. 16, Issue 11 (June 2023) , art. 4509  
2.
13 p, 3.8 MB Improved High Temperature Thermoelectric Properties in Misfit Ca3Co4O9 by Thermal Annealing / Chatterjee, Arindom (Institut Català de Nanociència i Nanotecnologia) ; Sachat, Alexandros el (National Center for Scientific Research "Demokritos") ; Banik, Ananya (Jawaharlal Nehru Centre for Advanced Scientific Research) ; Biswas, Kanishka (Jawaharlal Nehru Centre for Advanced Scientific Research) ; Castro-Alvarez, Alejandro (Universidad de La Frontera. Centro de Excelencia en Medicina Traslacional (Chile)) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Santiso, José (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
CaCoO, a p-type thermoelectric material based on transition-metal oxides, has garnered significant interest due to its potential in thermoelectric applications. Its unique misfit-layered crystal structure contributes to low thermal conductivity and a high Seebeck coefficient, leading to a thermoelectric figure of merit (zT) of ≥1 at 1000 K. [...]
2023 - 10.3390/en16135162
Energies, Vol. 16, Issue 13 (July 2023) , art. 5162  
3.
9 p, 6.1 MB Engineering Heat Transport Across Epitaxial Lattice-Mismatched van der Waals Heterointerfaces / Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Tsipas, Polychronis (National Center for Scientific Research "Demokritos") ; Xiao, Peng (Institut Català de Nanociència i Nanotecnologia) ; Ahmadi, Mohammad Taghi (University of Warwick) ; Daaoub, Abdalghani H. S. (University of Warwick) ; Sadeghi, Hatef (University of Warwick) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Dimoulas, Athanasios (National Center for Scientific Research "Demokritos") ; Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia)
Artificially engineered 2D materials offer unique physical properties for thermal management, surpassing naturally occurring materials. Here, using van der Waals epitaxy, we demonstrate the ability to engineer extremely insulating thermal metamaterials based on atomically thin lattice-mismatched BiSe/MoSe superlattices and graphene/PdSe heterostructures with exceptional thermal resistances (70-202 m 2 K/GW) and ultralow cross-plane thermal conductivities (0. [...]
2023 - 10.1021/acs.nanolett.3c01280
Nano letters, Vol. 23, Issue 15 (August 2023) , p. 6883-6891  
4.
8 p, 8.1 MB Contactless characterization of the elastic properties of glass microspheres / Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia) ; Necio, Tomasz (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Colombano, Martín F. (Université Paris Cité) ; Jaramillo Fernández, Juliana (Universitat de Barcelona. Departament d'Electrònica) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Capuj, Nestor Eduardo (Universidad de La Laguna. Departamento de Física) ; Navarro Urrios, Daniel (Universitat de Barcelona. Departament d'Electrònica)
Glass microspheres are of great interest for numerous industrial, biomedical, or standalone applications, but it remains challenging to evaluate their elastic and optical properties in a non-destructive way. [...]
2023 - 10.1063/5.0146969
APL materials, Vol. 11 (April 2023) , art. 41128  
5.
10 p, 3.2 MB Thermal conductivity of epitaxially grown InP : experiment and simulation / Jaramillo Fernández, Juliana (Royal Institute of Technology KTH. Department of Material and Nano Physics) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Sanatinia, Reza (Harvard University. John A. Paulson School of Engineering and Applied Sciences) ; Kataria, Himanshu (IRnova AB) ; Anand, Srinivasan (Royal Institute of Technology KTH. Department of Material and Nano Physics) ; Lourdudoss, Sebastian (Royal Institute of Technology KTH. Department of Material and Nano Physics) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
The integration of III-V optoelectronic devices on silicon is confronted with the challenge of heat dissipation for reliable and stable operation. A thorough understanding and characterization of thermal transport is paramount for improved designs of, for example, viable III-V light sources on silicon. [...]
2017 - 10.1039/c6ce02642g
CrystEngComm, Vol. 19, Issue 14 (February 2017) , p. 1879-1887  
6.
24 p, 2.7 MB Excitation and detection of acoustic phonons in nanoscale systems / Ng, Ryan C. (Institut Català de Nanociència i Nanotecnologia) ; Sachat, Alexandros el (National Center for Scientific Research Demokritos) ; Cespedes, 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  
7.
15 p, 3.3 MB Comparison of Brillouin light scattering and density of states in a supported layer : analytical and experimental study / El Abouti, Ossama (Université Abdelmalek Essadi. Faculté des Sciences et Techniques) ; Cuffe, John (Institut Català de Nanociència i Nanotecnologia) ; El Boudouti, El Houssaine (Université Mohammed I. Département de Physique) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Djafari-Rouhani, Bahram (Université de Lille. Département de Physique) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia)
We provide a detailed analytical calculation of the Brillouin light scattering (BLS) intensity of a layer on a substrate, taking into account both photoelastic and moving boundary (ripple effect) mechanisms, and give a comparison between BLS intensity and density of states (DOS) to determine the dispersion curves of longitudinal guided modes in the supported layer. [...]
2022 - 10.3390/cryst12091212
Crystals, Vol. 12, issue 9 (Sep. 2022) , art. 1212  
8.
2 p, 969.8 KB Erratum : Thermal transport in silver-coated polymer sphere composites by the bidirectional 3ω method (J. Appl. Phys. 131, 125107 (2022)] / Sandell, Susanne (Norwegian University of Science and Technology. Department of Structural Engineering) ; Wang, Thorstein (Norwegian University of Science and Technology. Department of Structural Engineering) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Kristiansen, Helge (Conpart AS) ; Zhang, Zhiliang (Norwegian University of Science and Technology. Department of Structural Engineering) ; He, Jianying (Norwegian University of Science and Technology. Department of Structural Engineering)
On p. 125107-2 of the original paper,1 a sentence reading "As a rule of thumb, V3? is typically three orders of magnitude larger than V0. " should read as "As a rule of thumb, V3? is typically three orders of magnitude smaller than V0. [...]
2022 - 10.1063/5.0123921
Journal of applied physics, Vol. 132, issue 12 (Sep. 2022) , art. 129903  
9.
9 p, 1.6 MB Thermal transport in silver-coated polymer sphere composites by the bidirectional 3 ω method / Sandell, Susanne (Norwegian University of Science and Technology. Department of Structural Engineering) ; Wang, Thorstein (Norwegian University of Science and Technology. Department of Structural Engineering) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Kristiansen, Helge (Conpart AS) ; Zhang, Zhiliang (Norwegian University of Science and Technology. Department of Structural Engineering) ; He, Jianying (Norwegian University of Science and Technology. Department of Structural Engineering)
The bidirectional 3 ω method is an electrothermal technique that is commonly used to obtain the thermal conductivity of materials such as liquids, biological samples, and pastes. In this work, an epoxy-based adhesive was filled with monodisperse 10 μm polymethyl methacrylate spheres coated with silver thin films (AgPS), such that a metallic network that dominated the thermal transport was formed through the composite. [...]
2022 - 10.1063/5.0080682
Journal of applied physics, Vol. 131, issue 12 (March 2022) , art. 125107  
10.
7 p, 2.5 MB Exciton tuning and strain imaging in WS2supported on PDMS micropillars / Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Xiao, Peng (Institut Català de Nanociència i Nanotecnologia) ; Puig Vilardell, E. (Universitat Autònoma de Barcelona. Departament de Física) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Esplandiu Egido, Maria José (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M (Institut Català de Nanociència i Nanotecnologia)
Since the raise of 2D materials, significant research has been dedicated to their strain-dependent electronic and mechanical properties. In this work, we studied exciton energies and low-frequency phonon modes in CVD-grown mono- and few-layer WS2 transferred on PDMS micropillars. [...]
2022 - 10.1063/5.0130927
Applied physics letters, Vol. 121, Issue 25 (December 2022) , art. 253101  

Articles : 48 registres trobats   1 - 10següentfinal  anar al registre:
Llibres i col·leccions 1 registres trobats  
1.
4 p, 239.4 KB On the Enhancement of the Thermal Conductivity of Graphene-Based Nanofluids / Rodríguez Laguna, María del Rocío (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Heat transfer fluids have been extensively used in both low-temperature and high temperature applications (e. g. microelectronics cooling and concentrated solar power). However, their low thermal conductivity is still a limit on performance. [...]
Cork : IEEE, 2018 (Proceedings of the IEEE Conference on Nanotechnology) - 10.1109/NANO.2018.8626244
IEEE 18th International Conference on Nanotechnology (IEEE-NANO), 2018, p. 8626244  

Documents de recerca 2 registres trobats  
1.
169 p, 10.2 MB Heat transfer fluids : from fundamental aspects of graphene nanofluids at room temperature to molten salts formulations for solar-thermal conversion / Rodríguez Laguna, María del Rocío ; Gómez-Romero, Pedro, 1959-, dir. ; Sotomayor Torres, Clivia M., dir. ; Chávez Ángel, Emigdio, dir. ; Ros i Badosa, Josep, dir. ; Universitat Autònoma de Barcelona. Departament de Química
Los fluidos de transferencia de calor, y en particular los nanofluidos, se pueden considerar un elemento esencial en diversos sectores industriales y su rendimiento es clave para una adecuada aplicación en tecnologías que van desde la gestión térmica y la refrigeración, a la generación de energía solar térmica y eléctrica mediante el uso de intercambiadores de calor. [...]
Heat transfer fluids and nanofluids constitute an important element in the industry and their performance is key to the successful application in technologies that go from heat management and cooling to heat exchangers in thermal-solar energy and electricity generation. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2019.  
2.
240 p, 2.8 MB Confined acoustic phonons in si nanomembranes: impact on thermal properties / Chávez Ángel, Emigdio ; Sotomayor Torres, Clivia M., dir. ; Mompart Penina, Jordi, dir. (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física
La tendencia de la miniaturización tecnológica ha conducido a la generación de densidades de potencia que exceden los 100 watts/cm2, los cuales están en el orden del calor producido en los reactores termonucleares. [...]
The miniaturization trend of the technology has led to power level densities in excess 100 watts/cm2, which are in the order of the heat produced in a nuclear reactor. The need for new cooling techniques has positioned the thermal management on the stage the last years. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  

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