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Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications

Smart windows, which control the amount of light entering buildings, houses, and automobiles, are promising in terms of energy conservation and their low environmental impact. Particularly, a next-generation smart window for automobiles will require high optical modulation, along with flexibility to...

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Detalles Bibliográficos
Autores principales: Jeong, Chan Yang, Kubota, Takashi, Tajima, Kazuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038161/
https://www.ncbi.nlm.nih.gov/pubmed/35478538
http://dx.doi.org/10.1039/d1ra05280b
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author Jeong, Chan Yang
Kubota, Takashi
Tajima, Kazuki
author_facet Jeong, Chan Yang
Kubota, Takashi
Tajima, Kazuki
author_sort Jeong, Chan Yang
collection PubMed
description Smart windows, which control the amount of light entering buildings, houses, and automobiles, are promising in terms of energy conservation and their low environmental impact. Particularly, a next-generation smart window for automobiles will require high optical modulation, along with flexibility to adapt to various intelligent designs. We have previously fabricated electrochromic devices (ECDs) by wet coating glass substrates with nanoparticles (NPs), such as water-dispersive ink containing tungsten oxide (WO(3)), and Prussian blue (PB), and have evaluated and confirmed the various electrochromic (EC) properties, such as optical modulation, cyclic durability, and colouration efficiency, of the ECDs. However, glass substrates are heavy and difficult to adapt by deformation to meet the demand of next-generation automobiles. In this study, we aim to prepare complementary ECDs by wet coating WO(3) and PB thin films on indium tin oxide (ITO)-coated flexible polyethylene terephthalate (PET) substrates. Chromaticity and haze of ECDs were investigated in detail as evaluation indexes to verify specifications for practical use in automotive applications. Repeated switching, bending, and twisting did not degrade the ECD properties, thereby demonstrating its durability and mechanical robustness. These excellent electrochromic properties of the flexible ECDs suggest that they are promising materials for application in next-generation smart windows for automobiles.
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spelling pubmed-90381612022-04-26 Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications Jeong, Chan Yang Kubota, Takashi Tajima, Kazuki RSC Adv Chemistry Smart windows, which control the amount of light entering buildings, houses, and automobiles, are promising in terms of energy conservation and their low environmental impact. Particularly, a next-generation smart window for automobiles will require high optical modulation, along with flexibility to adapt to various intelligent designs. We have previously fabricated electrochromic devices (ECDs) by wet coating glass substrates with nanoparticles (NPs), such as water-dispersive ink containing tungsten oxide (WO(3)), and Prussian blue (PB), and have evaluated and confirmed the various electrochromic (EC) properties, such as optical modulation, cyclic durability, and colouration efficiency, of the ECDs. However, glass substrates are heavy and difficult to adapt by deformation to meet the demand of next-generation automobiles. In this study, we aim to prepare complementary ECDs by wet coating WO(3) and PB thin films on indium tin oxide (ITO)-coated flexible polyethylene terephthalate (PET) substrates. Chromaticity and haze of ECDs were investigated in detail as evaluation indexes to verify specifications for practical use in automotive applications. Repeated switching, bending, and twisting did not degrade the ECD properties, thereby demonstrating its durability and mechanical robustness. These excellent electrochromic properties of the flexible ECDs suggest that they are promising materials for application in next-generation smart windows for automobiles. The Royal Society of Chemistry 2021-08-24 /pmc/articles/PMC9038161/ /pubmed/35478538 http://dx.doi.org/10.1039/d1ra05280b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Jeong, Chan Yang
Kubota, Takashi
Tajima, Kazuki
Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title_full Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title_fullStr Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title_full_unstemmed Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title_short Flexible electrochromic devices based on tungsten oxide and Prussian blue nanoparticles for automobile applications
title_sort flexible electrochromic devices based on tungsten oxide and prussian blue nanoparticles for automobile applications
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038161/
https://www.ncbi.nlm.nih.gov/pubmed/35478538
http://dx.doi.org/10.1039/d1ra05280b
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