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Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites

An SiO(2)-TiO(2) closed-surface antireflective coating was fabricated by the one-dipping method. TiO(2) nanoparticles were mixed with a nanocomposited silica sol, which was composed of acid-catalyzed nanosilica networks and silica hollow nanospheres (HNs). The microstructure of the sol-gel was chara...

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Autores principales: Guo, Zhiqiu, Zhu, Ze, Liu, Ya, Wu, Changjun, Tu, Hao, Wang, Jianhua, Su, Xuping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7998428/
https://www.ncbi.nlm.nih.gov/pubmed/33799829
http://dx.doi.org/10.3390/ma14061367
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author Guo, Zhiqiu
Zhu, Ze
Liu, Ya
Wu, Changjun
Tu, Hao
Wang, Jianhua
Su, Xuping
author_facet Guo, Zhiqiu
Zhu, Ze
Liu, Ya
Wu, Changjun
Tu, Hao
Wang, Jianhua
Su, Xuping
author_sort Guo, Zhiqiu
collection PubMed
description An SiO(2)-TiO(2) closed-surface antireflective coating was fabricated by the one-dipping method. TiO(2) nanoparticles were mixed with a nanocomposited silica sol, which was composed of acid-catalyzed nanosilica networks and silica hollow nanospheres (HNs). The microstructure of the sol-gel was characterized by transmission electron microscopy. The silica HNs were approximately 40–50 nm in diameter with a shell thickness of approximately 8–10 nm. The branched-chain structure resulting from acidic hydrolysis grew on these silica HNs, and TiO(2) was distributed inside this network. The surface morphology of the coating was measured by field emission scanning electron microscopy and atomic force microscopy. After optimization, transmittance of up to 94.03% was obtained on photovoltaic (PV) glass with a single side coated by this antireflective coating, whose refractive index was around 1.30. The short-circuit current gain of PV module was around 2.14–2.32%, as shown by the current-voltage (IV) curve measurements and external quantum efficiency (EQE) tests. This thin film also exhibited high photocatalytic activity. Due to the lack of voids on its surface, the antireflective coating in this study possessed excellent long-term reliability and robustness in both high-moisture and high-temperature environments. Combined with its self-cleaning function, this antireflective coating has great potential to be implemented in windows and photovoltaic modules.
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spelling pubmed-79984282021-03-28 Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites Guo, Zhiqiu Zhu, Ze Liu, Ya Wu, Changjun Tu, Hao Wang, Jianhua Su, Xuping Materials (Basel) Article An SiO(2)-TiO(2) closed-surface antireflective coating was fabricated by the one-dipping method. TiO(2) nanoparticles were mixed with a nanocomposited silica sol, which was composed of acid-catalyzed nanosilica networks and silica hollow nanospheres (HNs). The microstructure of the sol-gel was characterized by transmission electron microscopy. The silica HNs were approximately 40–50 nm in diameter with a shell thickness of approximately 8–10 nm. The branched-chain structure resulting from acidic hydrolysis grew on these silica HNs, and TiO(2) was distributed inside this network. The surface morphology of the coating was measured by field emission scanning electron microscopy and atomic force microscopy. After optimization, transmittance of up to 94.03% was obtained on photovoltaic (PV) glass with a single side coated by this antireflective coating, whose refractive index was around 1.30. The short-circuit current gain of PV module was around 2.14–2.32%, as shown by the current-voltage (IV) curve measurements and external quantum efficiency (EQE) tests. This thin film also exhibited high photocatalytic activity. Due to the lack of voids on its surface, the antireflective coating in this study possessed excellent long-term reliability and robustness in both high-moisture and high-temperature environments. Combined with its self-cleaning function, this antireflective coating has great potential to be implemented in windows and photovoltaic modules. MDPI 2021-03-11 /pmc/articles/PMC7998428/ /pubmed/33799829 http://dx.doi.org/10.3390/ma14061367 Text en © 2021 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guo, Zhiqiu
Zhu, Ze
Liu, Ya
Wu, Changjun
Tu, Hao
Wang, Jianhua
Su, Xuping
Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title_full Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title_fullStr Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title_full_unstemmed Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title_short Closed-Surface Multifunctional Antireflective Coating Made from SiO(2) with TiO(2) Nanocomposites
title_sort closed-surface multifunctional antireflective coating made from sio(2) with tio(2) nanocomposites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7998428/
https://www.ncbi.nlm.nih.gov/pubmed/33799829
http://dx.doi.org/10.3390/ma14061367
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