Fabrication of 3-D phononic crystals for thermal transport management

Thermal transport is an important physical phenomenon, and it has recently become even more relevant for the reduction of energy losses and the increase of efficiency in novel devices based on thermoelectricity [1]. Significant reduction of thermal conduction was recently achieved by coherent modifi...

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Main Author: Savytskyi, Mykhailo
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Fysiikan laitos, Department of Physics, University of Jyväskylä, Jyväskylän yliopisto
Format: Master's thesis
Language:eng
Published: 2016
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/50636
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author Savytskyi, Mykhailo
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto
author_facet Savytskyi, Mykhailo Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto Savytskyi, Mykhailo Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Fysiikan laitos Department of Physics University of Jyväskylä Jyväskylän yliopisto
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description Thermal transport is an important physical phenomenon, and it has recently become even more relevant for the reduction of energy losses and the increase of efficiency in novel devices based on thermoelectricity [1]. Significant reduction of thermal conduction was recently achieved by coherent modification of phonon modes [2], with the help of periodic phononic crystal structures. However, currently the experimental studies have only been performed for two-dimensional (2-D) nanostructures. Theoretically, the magnitude of control of thermal transport should be even stronger in three-dimensional (3-D) phononic crystal structures. For that reason, the question arises how to fabricate the desired 3-D phononic crystal nanostructures and to measure its thermal conductivity. [1] Minnich and A. J. et al., Energy Environ. Sci. 2, 466 (2009) [2] N. Zen, T. Puurtinen, T. Isotalo, S Chaudhuri, and I. J. Maasilta, Nature Communications, 5, 3435 (2014)
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Significant reduction of thermal conduction was recently achieved by coherent modification of phonon modes [2], with the help of periodic phononic crystal structures. However, currently the experimental studies have only been performed for two-dimensional (2-D) nanostructures. Theoretically, the magnitude of control of thermal transport should be even stronger in three-dimensional (3-D) phononic crystal structures. For that reason, the question arises how to fabricate the desired 3-D phononic crystal nanostructures and to measure its thermal conductivity.\r\n\r\n[1] Minnich and A. J. et al., Energy Environ. Sci. 2, 466 (2009) \r\n[2] N. Zen, T. Puurtinen, T. Isotalo, S Chaudhuri, and I. J. Maasilta, Nature Communications, 5, 3435 (2014)", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Mykhailo Savytskyi (mysavyts) on 2016-06-29 16:25:04.266877. 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spellingShingle Savytskyi, Mykhailo Fabrication of 3-D phononic crystals for thermal transport management phononic crystals NIS tunnel junctions self-assembly single-step vertical deposition Fysiikka Physics 4021 fononit
title Fabrication of 3-D phononic crystals for thermal transport management
title_full Fabrication of 3-D phononic crystals for thermal transport management
title_fullStr Fabrication of 3-D phononic crystals for thermal transport management Fabrication of 3-D phononic crystals for thermal transport management
title_full_unstemmed Fabrication of 3-D phononic crystals for thermal transport management Fabrication of 3-D phononic crystals for thermal transport management
title_short Fabrication of 3-D phononic crystals for thermal transport management
title_sort fabrication of 3 d phononic crystals for thermal transport management
title_txtP Fabrication of 3-D phononic crystals for thermal transport management
topic phononic crystals NIS tunnel junctions self-assembly single-step vertical deposition Fysiikka Physics 4021 fononit
topic_facet 4021 Fysiikka NIS tunnel junctions Physics fononit phononic crystals self-assembly single-step vertical deposition
url https://jyx.jyu.fi/handle/123456789/50636 http://www.urn.fi/URN:NBN:fi:jyu-201606293387
work_keys_str_mv AT savytskyimykhailo fabricationof3dphononiccrystalsforthermaltransportmanagement