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Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy

In the present study, the effect of liquid filling of the nanopore network on thermal transport in porous Si layers was investigated by μ-Raman spectroscopy. The values of thermal conductivity of porous Si and porous Si-hexadecane composites were estimated by fitting the experimentally measured phot...

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Detalles Bibliográficos
Autores principales: Makukha, Oksana, Lysenko, Ivan, Belarouci, Ali
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9867246/
https://www.ncbi.nlm.nih.gov/pubmed/36678063
http://dx.doi.org/10.3390/nano13020310
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author Makukha, Oksana
Lysenko, Ivan
Belarouci, Ali
author_facet Makukha, Oksana
Lysenko, Ivan
Belarouci, Ali
author_sort Makukha, Oksana
collection PubMed
description In the present study, the effect of liquid filling of the nanopore network on thermal transport in porous Si layers was investigated by μ-Raman spectroscopy. The values of thermal conductivity of porous Si and porous Si-hexadecane composites were estimated by fitting the experimentally measured photoinduced temperature rise with finite element method simulations. As a result, filling the pores with hexadecane led to (i) an increase in the thermal conductivity of the porous Si-hexadecane composite in a wide range of porosity levels (40–80%) and (ii) a suppression of the characteristic laser-induced phase transition of Si from cubic to hexagonal form.
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spelling pubmed-98672462023-01-22 Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy Makukha, Oksana Lysenko, Ivan Belarouci, Ali Nanomaterials (Basel) Article In the present study, the effect of liquid filling of the nanopore network on thermal transport in porous Si layers was investigated by μ-Raman spectroscopy. The values of thermal conductivity of porous Si and porous Si-hexadecane composites were estimated by fitting the experimentally measured photoinduced temperature rise with finite element method simulations. As a result, filling the pores with hexadecane led to (i) an increase in the thermal conductivity of the porous Si-hexadecane composite in a wide range of porosity levels (40–80%) and (ii) a suppression of the characteristic laser-induced phase transition of Si from cubic to hexagonal form. MDPI 2023-01-11 /pmc/articles/PMC9867246/ /pubmed/36678063 http://dx.doi.org/10.3390/nano13020310 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Makukha, Oksana
Lysenko, Ivan
Belarouci, Ali
Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title_full Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title_fullStr Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title_full_unstemmed Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title_short Liquid-Modulated Photothermal Phenomena in Porous Silicon Nanostructures Studied by μ-Raman Spectroscopy
title_sort liquid-modulated photothermal phenomena in porous silicon nanostructures studied by μ-raman spectroscopy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9867246/
https://www.ncbi.nlm.nih.gov/pubmed/36678063
http://dx.doi.org/10.3390/nano13020310
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AT belarouciali liquidmodulatedphotothermalphenomenainporoussiliconnanostructuresstudiedbymramanspectroscopy