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Articles, 66 registres trobats
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Documents de recerca, 5 registres trobats
Articles 66 registres trobats  1 - 10següentfinal  anar al registre:
1.
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  
2.
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  
3.
8 p, 1.5 MB Real-time optical dimensional metrology via diffractometry for nanofabrication / Whitworth, Guy L. (Institut Català de Nanociència i Nanotecnologia) ; Francone, Achille (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Kehagias, Nikolaos (Institut Català de Nanociència i Nanotecnologia)
Surface patterning technologies represent a worldwide growing industry, creating smart surfaces and micro/nanoscale device. The advent of large-area, high-speed imprinting technologies has created an ever-growing need for rapid and non-destructive dimensional metrology techniques to keep pace with the speed of production. [...]
2020 - 10.1038/s41598-020-61975-3
Scientific reports (Nature Publishing Group), Vol. 10 (2020) , art. 5371  
4.
10 p, 3.1 MB Ion bombardment induced formation of self-organized wafer-scale GaInP nanopillar assemblies / Visser, Dennis (KTH Royal Institute of Technology. Department of Applied Physics) ; Jaramillo Fernández, Juliana (KTH Royal Institute of Technology. Department of Applied Physics) ; Haddad, Gabriel (KTH Royal Institute of Technology. Department of Applied Physics) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Anand, Srinivasan (KTH Royal Institute of Technology. Department of Applied Physics)
Ion sputtering assisted formation of nanopillars is demonstrated as a wafer-scale, lithography-free fabrication method to obtain high optical quality gallium indium phosphide (GaInP) nanopillars. Compared to binary materials, little has been reported on the formation of self-organized ternary nanostructures. [...]
2020 - 10.1116/1.5127265
Journal of vacuum science and technology. B, Nanotechnology & microelectronics, Vol. 38, issue 1 (Jan. 2020) , art. 12801  
5.
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  
6.
9 p, 3.0 MB Broadband dynamic polarization conversion in optomechanical metasurfaces / Zanotto, Simone (Consiglio Nazionale delle Ricerche. Istituto Nanoscienze. Nest) ; Colombano Sosa, Martin (Institut Català de Nanociència i Nanotecnologia) ; Navarro Urrios, Daniel. (Universitat de Barcelona. Departament d'Electrònica) ; Biasiol, Giorgio (Consiglio Nazionale delle Ricerche. Istituto Officina dei Materiali. Laboratorio TASC) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Tredicucci, Alessandro (Università di Pisa. Dipartimento di Fisica) ; Pitanti, Alessandro (Consiglio Nazionale delle Ricerche. Istituto Nanoscienze. Nest)
Artificial photonic materials, nanofabricated through wavelength-scale engineering, have shown astounding and promising results in harnessing, tuning, and shaping photonic beams. Metamaterials have proven to be often outperforming the natural materials they take inspiration from. [...]
2020 - 10.3389/fphy.2019.00231
Frontiers in physics (Lausanne), Vol. 7 (Jan. 2020) , art. 231  
7.
9 p, 957.5 KB Defects in nano-imprint lithography line patterns : computational modelling and measurement accuracy / Constantoudis, Vassilios (Institute of Nanoscience and Nanotechnology (Grècia)) ; Whitworth, Guy L. (Institut Català de Nanociència i Nanotecnologia) ; Kehagias, Nikolaos (Institut Català de Nanociència i Nanotecnologia) ; Papavieros, George (Aristotle University of Thessaloniki. Physics Department) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Gogolides, Evangelos (Institute of Nanoscience and Nanotechnology (Grècia))
NIL patterns frequently suffer from the presence of defects such as missing lines or dots which degrade their properties and functionality. Due to their low density and nanosize, the measurement of their fraction is challenging nanometrology trade-off between resolution and measurement range. [...]
2019 - 10.1117/12.2523931
Proceedings of SPIE, Vol. 10958 (2019) , art. 109581K  
8.
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  
9.
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  
10.
43 p, 7.1 MB Graphene related materials for thermal management / Fu, Yifeng (Chalmers University of Technology) ; Hansson, Josef (Chalmers University of Technology) ; Liu, Ya (Fudan University) ; Chen, Shujing (Shanghai University) ; Zehri, Abdelhafid (Chalmers University of Technology) ; Samani, Majid Kabiri (Chalmers University of Technology) ; Wang, Nan (SHT Smart High Tech AB) ; Ni, Yuxiang (Southwest Jiaotong University) ; Zhang, Yan (Shanghai University) ; Zhang, Zhi-Bin (Uppsala University) ; Wang, Qianlong (Shenzhen Shen Rui Graphene Technology) ; Li, Mengxiong (Fudan University) ; Lu, Hongbin (Fudan University) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Volz, Sebastian (University of Tokyo) ; Balandin, Alexander A. (University of California) ; Xu, Xiangfan (Tongji University) ; Liu, Johan (Shanghai University)
Almost 15 years have gone ever since the discovery of graphene as a single atom layer. Numerous papers have been published to demonstrate its high electron mobility, excellent thermal and mechanical as well as optical properties. [...]
2019 - 10.1088/2053-1583/ab48d9
2D Materials, Vol. 7, Núm. 1 (October 2019) , art. 12001  

Articles : 66 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 5 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.
164 p, 10.6 MB Thermoelectric performance of layered cobaltate epitaxial films deposited by pulsed laser evaporation / Chatterjee, Arindom ; Santiso López, José, dir. ; Sotomayor Torres, Clivia M., dir. ; Garcia Alonso, Gemma, dir. ; Universitat Autònoma de Barcelona. Departament de Física ; Institut Català de Nanociència i Nanotecnologia (ICN2)
El efecto termoeléctrico o efecto Seebeck es un fenómeno característico de un conductor eléctrico y que proporciona información fundamental como la estructura electrónica del material entorno a la energía de Fermi. [...]
Thermoelectric Seebeck effect is a very important phenomenon of a charge conductor as it provides fundamental information such as the electronic band structure near Fermi energy. Thermoelectric devices are very important from a technological point of view because of its ability to convert electricity from a temperature gradient. [...]

[Bellaterra] : Universitat Autònoma de Barcelona, 2018.  
3.
113 p, 4.5 MB Thermoelectric properties of oxides and related materials / Bhansali, Sweta ; Sotomayor Torres, Clivia M., dir. ; Mompart Penina, Jordi, dir. (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física ; Institut de Nanociència i Nanotecnologia
Las películas delgadas y superredes de titanato de estroncio dopados con niobio (SrTiO3 son un tipo de material que ha mostrado ser cada vez más interesante para propósitos termoeléctricos debido a sus propiedades estructurales, térmicas y eléctricas sintonizables. [...]
Nb doped Strontium titanate (SrTiO3) thin films and multilayers are an increasingly interesting type of material for thermoelectricity due to their tunable structural, thermal and electrical properties. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2017  
4.
215 p, 7.7 MB Functional surfaces by means of nanoimprint lithography techniques / Fernández Estévez, Ariadna ; Sotomayor Torres, Clivia M., dir. ; Kehagias, Nikolaos, dir. ; Mompart Penina, Jordi, dir. (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física
Diferentes funcionalidades pueden ser obtenidas en diversas superficies a través de topografía en lugar de química, inspirándose en la naturaleza. El principal objetivo de esta tesis es la investigación de la litografía de nanoimpresión (NIL) como una técnica de fabricación factible para modificar superficies y así alterar sus propiedades físicas, utilizándolas para aplicaciones superhidrofóbicas y oleofóbicas. [...]
Different surface functionalities can be achieved by means of topography instead of chemistry, based on inspirations from nature. The main objective of this thesis is the investigation of Nanoimprint Lithography (NIL) as a feasible fabrication technique to modify both organic and inorganic surfaces to alter their physical properties and utilize them for superhydrophobic and oleophobic applications. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2016  
5.
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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