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Nanoporous Titanium (Oxy)nitride Films as Broadband Solar Absorbers
[Image: see text] Broadband absorption of solar light is a key aspect in many applications that involve an efficient conversion of solar energy to heat. Titanium nitride (TiN)-based materials, in the form of periodic arrays of nanostructures or multilayers, can promote significant heat generation up...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9052191/ https://www.ncbi.nlm.nih.gov/pubmed/35436405 http://dx.doi.org/10.1021/acsami.2c01185 |
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author | Bricchi, Beatrice R. Mascaretti, Luca Garattoni, Simona Mazza, Matteo Ghidelli, Matteo Naldoni, Alberto Li Bassi, Andrea |
author_facet | Bricchi, Beatrice R. Mascaretti, Luca Garattoni, Simona Mazza, Matteo Ghidelli, Matteo Naldoni, Alberto Li Bassi, Andrea |
author_sort | Bricchi, Beatrice R. |
collection | PubMed |
description | [Image: see text] Broadband absorption of solar light is a key aspect in many applications that involve an efficient conversion of solar energy to heat. Titanium nitride (TiN)-based materials, in the form of periodic arrays of nanostructures or multilayers, can promote significant heat generation upon illumination thanks to their efficient light absorption and refractory character. In this work, pulsed laser deposition was chosen as a synthesis technique to shift metallic bulk-like TiN to nanoparticle-assembled hierarchical oxynitride (TiO(x)N(y)) films by increasing the background gas deposition pressure. The nanoporous hierarchical films exhibit a tree-like morphology, a strong broadband solar absorption (∼90% from the UV to the near-infrared range), and could generate temperatures of ∼475 °C under moderate light concentration (17 Suns). The high heat generation achieved by treelike films is ascribed to their porous morphology, nanocrystalline structure, and oxynitride composition, which overall contribute to a superior light trapping and dissipation to heat. These properties pave the way for the implementation of such films as solar absorber structures. |
format | Online Article Text |
id | pubmed-9052191 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-90521912022-04-29 Nanoporous Titanium (Oxy)nitride Films as Broadband Solar Absorbers Bricchi, Beatrice R. Mascaretti, Luca Garattoni, Simona Mazza, Matteo Ghidelli, Matteo Naldoni, Alberto Li Bassi, Andrea ACS Appl Mater Interfaces [Image: see text] Broadband absorption of solar light is a key aspect in many applications that involve an efficient conversion of solar energy to heat. Titanium nitride (TiN)-based materials, in the form of periodic arrays of nanostructures or multilayers, can promote significant heat generation upon illumination thanks to their efficient light absorption and refractory character. In this work, pulsed laser deposition was chosen as a synthesis technique to shift metallic bulk-like TiN to nanoparticle-assembled hierarchical oxynitride (TiO(x)N(y)) films by increasing the background gas deposition pressure. The nanoporous hierarchical films exhibit a tree-like morphology, a strong broadband solar absorption (∼90% from the UV to the near-infrared range), and could generate temperatures of ∼475 °C under moderate light concentration (17 Suns). The high heat generation achieved by treelike films is ascribed to their porous morphology, nanocrystalline structure, and oxynitride composition, which overall contribute to a superior light trapping and dissipation to heat. These properties pave the way for the implementation of such films as solar absorber structures. American Chemical Society 2022-04-18 2022-04-27 /pmc/articles/PMC9052191/ /pubmed/35436405 http://dx.doi.org/10.1021/acsami.2c01185 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Bricchi, Beatrice R. Mascaretti, Luca Garattoni, Simona Mazza, Matteo Ghidelli, Matteo Naldoni, Alberto Li Bassi, Andrea Nanoporous Titanium (Oxy)nitride Films as Broadband Solar Absorbers |
title | Nanoporous
Titanium (Oxy)nitride Films as Broadband
Solar Absorbers |
title_full | Nanoporous
Titanium (Oxy)nitride Films as Broadband
Solar Absorbers |
title_fullStr | Nanoporous
Titanium (Oxy)nitride Films as Broadband
Solar Absorbers |
title_full_unstemmed | Nanoporous
Titanium (Oxy)nitride Films as Broadband
Solar Absorbers |
title_short | Nanoporous
Titanium (Oxy)nitride Films as Broadband
Solar Absorbers |
title_sort | nanoporous
titanium (oxy)nitride films as broadband
solar absorbers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9052191/ https://www.ncbi.nlm.nih.gov/pubmed/35436405 http://dx.doi.org/10.1021/acsami.2c01185 |
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