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Articles, 27 registres trobats
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Articles 27 registres trobats  1 - 10següentfinal  anar al registre:
1.
26 p, 4.2 MB Thermoreflectance techniques and Raman thermometry for thermal property characterization of nanostructures / Sandell, Susanne (Norwegian University of Science and Technology. Department of Structural Engineering) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ; He, Jianying (Norwegian University of Science and Technology. Department of Structural Engineering) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia)
The widespread use of nanostructures and nanomaterials has opened up a whole new realm of challenges in thermal management, but also leads to possibilities for energy conversion, storage, and generation, in addition to numerous other technological applications. [...]
2020 - 10.1063/5.0020239
Journal of applied physics, Vol. 128, issue 13 (Oct. 2020) , art. 131101  
2.
30 p, 705.6 KB Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films / Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ; Spièce, Jean (Lancaster University. Physics Department) ; Evangeli, Charalambos (Lancaster University. Physics Department) ; Robson, Alexander James (Lancaster University. Physics Department) ; Kreuzer, Martin (Institut Català de Nanociència i Nanotecnologia) ; Rodríguez Laguna, María del Rocío (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Kolosov, Oleg V. (Lancaster University. Physics Department) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia)
We report on the structural, mechanical, and thermal analysis of 40 nm thick polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) films coated with evaporated chromium layers of different thicknesses (1, 2, and 5 nm). [...]
2020 - 10.1021/acsapm.9b00924
ACS Applied Polymer Materials, Vol. 2, issue 2 (Feb. 2020) , p. 487-496  
3.
11 p, 3.3 MB Properties of nanocrystalline silicon probed by optomechanics / Navarro Urrios, Daniel (Institut Català de Nanociència i Nanotecnologia) ; Colombano Sosa, Martin (Institut Català de Nanociència i Nanotecnologia) ; Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Arregui Bravo, Guillermo (Universitat Autònoma de Barcelona. Departament de Física) ; Capuj, Néstor E. (Universidad de La Laguna. Departamento de Física) ; Devos, Arnaud (Centre national de la recherche scientifique (França). Institut d'Electronique, de Microélectronique et de Nanotechnologie) ; Griol, Amadeu. (Universitat Politècnica de Valencia. Nanophotonics Technology Center) ; Bellieres, Laurent (Universitat Politècnica de Valencia. Nanophotonics Technology Center) ; Martínez, Alejandro (Universitat Politècnica de Valencia. Nanophotonics Technology Center) ; Grigoras, Kestutis (VTT Technical Research Centre of Finland Ltd) ; Häkkinen, Teija (VTT Technical Research Centre of Finland Ltd) ; Saarilahti, Jaakko (VTT Technical Research Centre of Finland Ltd) ; Makkonen, Tapani (VTT Technical Research Centre of Finland Ltd) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Ahopelto, Jouni (VTT Technical Research Centre of Finland Ltd)
Nanocrystalline materials exhibit properties that can differ substantially from those of their single crystal counterparts. As such, they provide ways to enhance and optimize their functionality for devices and applications. [...]
2020 - 10.1515/nanoph-2020-0489
Nanophotonics, Vol. 9, issue 16 (Nov. 2020) , p. 4819-4829  
4.
18 p, 3.9 MB Understanding the molecular basis of 5-ht4 receptor partial agonists through 3d-qsar studies / Castro-Alvarez, Alejandro (Universidad de La Frontera. Facultad de Medicina) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Nelson, Ronald (Universidad Católica del Norte. Departamento de Química)
Alzheimer's disease (AD) is a neurodegenerative disorder whose prevalence has an incidence in senior citizens. Unfortunately, current pharmacotherapy only offers symptom relief for patients with side effects such as bradycardia, nausea, and vomiting. [...]
2021 - 10.3390/ijms22073602
International journal of molecular sciences, Vol. 22, issue 7 (April 2021) , art. 3602  
5.
33 p, 4.8 MB Heat transport control and thermal characterization of low-dimensional mMaterials : a review / Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (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)
Heat dissipation and thermal management are central challenges in various areas of science and technology and are critical issues for the majority of nanoelectronic devices. In this review, we focus on experimental advances in thermal characterization and phonon engineering that have drastically increased the understanding of heat transport and demonstrated efficient ways to control heat propagation in nanomaterials. [...]
2021 - 10.3390/nano11010175
Nanomaterials, Vol. 11, issue 1 (Jan. 2021) , art. 175  
6.
19 p, 1.6 MB Large thermoelectric power variations in epitaxial thin films of layered perovskite GdBaCo2O5.5±δwith a different preferred orientation and strain / Chatterjee, Arindom (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia) ; Caicedo Roque, Jose Manuel (Institut Català de Nanociència i Nanotecnologia) ; Padilla-Pantoja, Jessica (Institut Català de Nanociència i Nanotecnologia) ; Leborán, Víctor (Universidade de Santiago de Compostela. Departamento de Química-Física) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Rivadulla, Francisco (Universidade de Santiago de Compostela. Departamento de Química-Física) ; Santiso, José (Institut Català de Nanociència i Nanotecnologia)
This work describes the growth of thin epitaxial films of the layered perovskite material GdBaCoO(GBCO) on different single crystal substrates SrTiO(STO), (LaAlO)(SrTaAlO)(LSAT) and LaAlO(LAO) as an approach to study changes in the thermoelectric properties by means of the induced epitaxial strain. [...]
2020 - 10.1039/d0ta04781c
Journal of materials chemistry, Vol. 8, issue 38 (Oct. 2020) , p. 19975-19983  
7.
12 p, 5.0 MB Phonon bridge effect in superlattices of thermoelectric tinisn/hfnisn with controlled interface intermixing / Heinz, Sven (Johannes Gutenberg University. Institute of Physics) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Trapp, Maximilian (Darmstadt University of Technology. Institute of Applied Geosciences) ; Kleebe, Hans-Joachim (Institut Català de Nanociència i Nanotecnologia) ; Jakob, Gerhard (Johannes Gutenberg Universität Mainz. Graduate School of Excellence Materials Science)
The implementation of thermal barriers in thermoelectric materials improves their power conversion rates effectively. For this purpose, material boundaries are utilized and manipulated to affect phonon transmissivity. [...]
2020 - 10.3390/nano10061239
Nanomaterials, Vol. 10, issue 6 (June 2020) , art. 1239  
8.
11 p, 1.5 MB Enhancement of thermal boundary conductance of metal-polymer system / Sandell, Susanne (Norwegian University of Science and Technology. Department of Structural Engineering) ; Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Kristiansen, Helge (Norwegian University of Science and Technology. Department of Structural Engineering) ; Zhang, Zhiliang (Norwegian University of Science and Technology. Department of Structural Engineering) ; He, Jianying (Norwegian University of Science and Technology. Department of Structural Engineering)
In organic electronics, thermal management is a challenge, as most organic materials conduct heat poorly. As these devices become smaller, thermal transport is increasingly limited by organic-inorganic interfaces, for example that between a metal and a polymer. [...]
2020 - 10.3390/nano10040670
Nanomaterials, Vol. 10, issue 4 (April 2020) , art. 670  
9.
6 p, 1.6 MB A novel contactless technique for thermal field mapping and thermal conductivity determination : two-laser Raman thermometry / Reparaz, Juan Sebastian (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Universitat Autònoma de Barcelona. Departament de Física) ; Wagner, Markus R. (Institut Català de Nanociència i Nanotecnologia) ; 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) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We present a novel contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through the spectral position of a Raman active mode. [...]
2014 - 10.1063/1.4867166
Review of Scientific Instruments, Vol. 85, issue 3 (March 2014) , art. 34901  
10.
13 p, 281.1 KB Modification of Akhieser mechanism in Si nanomembranes and thermal conductivity dependence of the Q-factor of high frequency nanoresonators / Chávez Ángel, Emigdio (Universitat Autònoma de Barcelona. Departament de Física) ; Zarate, R.A. (Universidad Católica del Norte. Departamento de Física) ; Gomis Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We present and validate a reformulated Akhieser model that takes into account the reduction of thermal conductivity due to the impact of boundary scattering on the thermal phonons' lifetime. We consider silicon nanomembranes with mechanical mode frequencies in the GHz range as textbook examples of nanoresonators. [...]
2014 - 10.1088/0268-1242/29/12/124010
Semiconductor Science and Technology, Vol. 29, issue 12 (Dec. 2014) , art. 124010  

Articles : 27 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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