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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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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. |
format | Online Article Text |
id | pubmed-9867246 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT makukhaoksana liquidmodulatedphotothermalphenomenainporoussiliconnanostructuresstudiedbymramanspectroscopy AT lysenkoivan liquidmodulatedphotothermalphenomenainporoussiliconnanostructuresstudiedbymramanspectroscopy AT belarouciali liquidmodulatedphotothermalphenomenainporoussiliconnanostructuresstudiedbymramanspectroscopy |