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Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber

Nikhar Khanna, Mohamed El Hachemi, Rubén Sevilla Orcid Logo, Oubay Hassan Orcid Logo, Kenneth Morgan Orcid Logo, Emanuele Barborini, Salim Belouettar Orcid Logo

Composites Part C: Open Access, Volume: 8, Start page: 100282

Swansea University Authors: Rubén Sevilla Orcid Logo, Oubay Hassan Orcid Logo, Kenneth Morgan Orcid Logo

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DOI (Published version): 10.1016/j.jcomc.2022.100282

Abstract

The work presented involves the multiphysical modelling, simulation and design optimization of a key component of a Solar Selective Coatings (SSC). The investigated SSC absorber consists of a near homogeneous distribution of nanoparticles of Titanium Nitride (TiN) in a matrix of Aluminium Nitride (A...

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Published in: Composites Part C: Open Access
ISSN: 2666-6820
Published: Elsevier BV 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa60203
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The investigated SSC absorber consists of a near homogeneous distribution of nanoparticles of Titanium Nitride (TiN) in a matrix of Aluminium Nitride (AlN), to form a composite dielectric. With the aim of achieving high absorbance in the visible region of the spectrum and minimum reflectance in the infrared region of the spectrum, our work highlights the numerical design, the synthesis and optical characterization of a composite dielectric of approximately 500 nm thickness. A bottom-up approach for the preparation of a stack with alternate layers, consisting of a distribution of TiN nanoparticles with a layer of AlN on top, was adopted. The TiN nanoparticles, laid on a substrate (Silicon/Glass) by wet chemical method, are coated with conformal layer of AlN, via Plasma-enhanced Atomic Layer Deposition (PE-ALD). The control of the morphology at the nanoscale is fundamental in improving the optical performance of the material. For this reason, two composites were prepared. 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spelling 2022-07-01T16:41:19.5303449 v2 60203 2022-06-14 Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber b542c87f1b891262844e95a682f045b6 0000-0002-0061-6214 Rubén Sevilla Rubén Sevilla true false 07479d73eba3773d8904cbfbacc57c5b 0000-0001-7472-3218 Oubay Hassan Oubay Hassan true false 17f3de8936c7f981aea3a832579c5e91 0000-0003-0760-1688 Kenneth Morgan Kenneth Morgan true false 2022-06-14 CIVL The work presented involves the multiphysical modelling, simulation and design optimization of a key component of a Solar Selective Coatings (SSC). The investigated SSC absorber consists of a near homogeneous distribution of nanoparticles of Titanium Nitride (TiN) in a matrix of Aluminium Nitride (AlN), to form a composite dielectric. With the aim of achieving high absorbance in the visible region of the spectrum and minimum reflectance in the infrared region of the spectrum, our work highlights the numerical design, the synthesis and optical characterization of a composite dielectric of approximately 500 nm thickness. A bottom-up approach for the preparation of a stack with alternate layers, consisting of a distribution of TiN nanoparticles with a layer of AlN on top, was adopted. The TiN nanoparticles, laid on a substrate (Silicon/Glass) by wet chemical method, are coated with conformal layer of AlN, via Plasma-enhanced Atomic Layer Deposition (PE-ALD). The control of the morphology at the nanoscale is fundamental in improving the optical performance of the material. For this reason, two composites were prepared. One starting with TiN dispersions made with dry TiN powder and deionized water, and the other with ready-made TiN dispersions. In both composites, the particles were 20–30 nm in diameter. In both the cases, fewer clusters of about 0.5–1 μm of TiN particles were present however, enough steps were taken to minimize these clusters into smaller particles. Parameters, such as the size of TiN nanoparticles, the thickness of AlN thin film, were revealed by the numerical simulations, performed using Wave-Optics module in COMSOL Multiphysics. The work showcased clearly compares the two kinds of composites, using scanning electron microscope, X-ray photoelectron spectroscopy and electrical conductivity measurement. In addition, the optical performance of the two prepared composites is used as a means of validating the computational model. Journal Article Composites Part C: Open Access 8 100282 Elsevier BV 2666-6820 Composite dielectric absorber; Multi-physics; Modelling; Design optimization; Manufacturing and testing 1 8 2022 2022-08-01 10.1016/j.jcomc.2022.100282 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University We gratefully acknowledge the financial support provided by the FNR, Luxembourg, and EPSRC, United Kingdom, under grant INTER FNR –RCUK/ 1611584556. 2022-07-01T16:41:19.5303449 2022-06-14T09:27:28.4070507 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Nikhar Khanna 1 Mohamed El Hachemi 2 Rubén Sevilla 0000-0002-0061-6214 3 Oubay Hassan 0000-0001-7472-3218 4 Kenneth Morgan 0000-0003-0760-1688 5 Emanuele Barborini 6 Salim Belouettar 0000-0002-2986-2902 7 60203__24428__1c08241cf7514ee3ab60d953fa14cd8e.pdf 60203.pdf 2022-07-01T16:13:51.3273398 Output 4430475 application/pdf Version of Record true © 2022 The Author(s). This is an open access article under the CC BY-NC-ND license true eng http://creativecommons.org/licenses/bync-nd/4.0/
title Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
spellingShingle Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
Rubén Sevilla
Oubay Hassan
Kenneth Morgan
title_short Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
title_full Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
title_fullStr Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
title_full_unstemmed Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
title_sort Multi-physical modelling, design optimization and manufacturing of a composite dielectric solar absorber
author_id_str_mv b542c87f1b891262844e95a682f045b6
07479d73eba3773d8904cbfbacc57c5b
17f3de8936c7f981aea3a832579c5e91
author_id_fullname_str_mv b542c87f1b891262844e95a682f045b6_***_Rubén Sevilla
07479d73eba3773d8904cbfbacc57c5b_***_Oubay Hassan
17f3de8936c7f981aea3a832579c5e91_***_Kenneth Morgan
author Rubén Sevilla
Oubay Hassan
Kenneth Morgan
author2 Nikhar Khanna
Mohamed El Hachemi
Rubén Sevilla
Oubay Hassan
Kenneth Morgan
Emanuele Barborini
Salim Belouettar
format Journal article
container_title Composites Part C: Open Access
container_volume 8
container_start_page 100282
publishDate 2022
institution Swansea University
issn 2666-6820
doi_str_mv 10.1016/j.jcomc.2022.100282
publisher Elsevier BV
college_str Faculty of Science and Engineering
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hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
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description The work presented involves the multiphysical modelling, simulation and design optimization of a key component of a Solar Selective Coatings (SSC). The investigated SSC absorber consists of a near homogeneous distribution of nanoparticles of Titanium Nitride (TiN) in a matrix of Aluminium Nitride (AlN), to form a composite dielectric. With the aim of achieving high absorbance in the visible region of the spectrum and minimum reflectance in the infrared region of the spectrum, our work highlights the numerical design, the synthesis and optical characterization of a composite dielectric of approximately 500 nm thickness. A bottom-up approach for the preparation of a stack with alternate layers, consisting of a distribution of TiN nanoparticles with a layer of AlN on top, was adopted. The TiN nanoparticles, laid on a substrate (Silicon/Glass) by wet chemical method, are coated with conformal layer of AlN, via Plasma-enhanced Atomic Layer Deposition (PE-ALD). The control of the morphology at the nanoscale is fundamental in improving the optical performance of the material. For this reason, two composites were prepared. One starting with TiN dispersions made with dry TiN powder and deionized water, and the other with ready-made TiN dispersions. In both composites, the particles were 20–30 nm in diameter. In both the cases, fewer clusters of about 0.5–1 μm of TiN particles were present however, enough steps were taken to minimize these clusters into smaller particles. Parameters, such as the size of TiN nanoparticles, the thickness of AlN thin film, were revealed by the numerical simulations, performed using Wave-Optics module in COMSOL Multiphysics. The work showcased clearly compares the two kinds of composites, using scanning electron microscope, X-ray photoelectron spectroscopy and electrical conductivity measurement. In addition, the optical performance of the two prepared composites is used as a means of validating the computational model.
published_date 2022-08-01T04:18:07Z
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