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Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte

Background: In the last decade, there has been much interest in the area of solid polymer electrolyte (SPE) to address the issues of electrolyte leakage and evaporation in electrochromic devices (ECD). ECD is a state-of-the-art technology having the ability to change from transparent state to opaque...

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Autores principales: Au, Benedict Wen-Cheun, Chan, Kah-Yoong, Sahdan, Mohd Zainizan, Chong, Abraham Shiau-Iun, Knipp, Dietmar
Formato: Online Artículo Texto
Lenguaje:English
Publicado: F1000 Research Limited 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9184923/
https://www.ncbi.nlm.nih.gov/pubmed/35706997
http://dx.doi.org/10.12688/f1000research.73661.2
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author Au, Benedict Wen-Cheun
Chan, Kah-Yoong
Sahdan, Mohd Zainizan
Chong, Abraham Shiau-Iun
Knipp, Dietmar
author_facet Au, Benedict Wen-Cheun
Chan, Kah-Yoong
Sahdan, Mohd Zainizan
Chong, Abraham Shiau-Iun
Knipp, Dietmar
author_sort Au, Benedict Wen-Cheun
collection PubMed
description Background: In the last decade, there has been much interest in the area of solid polymer electrolyte (SPE) to address the issues of electrolyte leakage and evaporation in electrochromic devices (ECD). ECD is a state-of-the-art technology having the ability to change from transparent state to opaque state under the influence of a small applied voltage for energy saving applications. Methods: In this work, tungsten oxide (WO (3)) films were fabricated via the sol-gel spin-coating method. Subsequently, ECDs were assembled based on SPE and liquid polymer electrolyte (LPE), respectively using indium doped tin oxide (ITO) coated glass as conducting electrodes and WO (3) films as working electrode. Results: Cyclic voltammetry (CV) results revealed reduced ionic conductivity of conducting ions in SPE based ECD (SECD) owing to increased viscosity by addition of PMMA. However, lesser time was required for the colouration process. LPE based ECD (LECD) showed higher colouration efficiency (CE) compared to its SECD counterpart. This is attributed to its larger optical modulation. Conclusions: This work presents a comparison between the performance of LECD and SECD in terms of electrochromic (EC) and optical properties. They were analysed through CV, chronoamperometry (CA) and ultraviolet-visible (UV-Vis) spectrophotometer. Furthermore, this work provides an insight on the employment of solid-state electrolytes in ECDs in view of the persistent leakage and evaporation problems in ECD implementation.
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spelling pubmed-91849232022-06-14 Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte Au, Benedict Wen-Cheun Chan, Kah-Yoong Sahdan, Mohd Zainizan Chong, Abraham Shiau-Iun Knipp, Dietmar F1000Res Research Article Background: In the last decade, there has been much interest in the area of solid polymer electrolyte (SPE) to address the issues of electrolyte leakage and evaporation in electrochromic devices (ECD). ECD is a state-of-the-art technology having the ability to change from transparent state to opaque state under the influence of a small applied voltage for energy saving applications. Methods: In this work, tungsten oxide (WO (3)) films were fabricated via the sol-gel spin-coating method. Subsequently, ECDs were assembled based on SPE and liquid polymer electrolyte (LPE), respectively using indium doped tin oxide (ITO) coated glass as conducting electrodes and WO (3) films as working electrode. Results: Cyclic voltammetry (CV) results revealed reduced ionic conductivity of conducting ions in SPE based ECD (SECD) owing to increased viscosity by addition of PMMA. However, lesser time was required for the colouration process. LPE based ECD (LECD) showed higher colouration efficiency (CE) compared to its SECD counterpart. This is attributed to its larger optical modulation. Conclusions: This work presents a comparison between the performance of LECD and SECD in terms of electrochromic (EC) and optical properties. They were analysed through CV, chronoamperometry (CA) and ultraviolet-visible (UV-Vis) spectrophotometer. Furthermore, this work provides an insight on the employment of solid-state electrolytes in ECDs in view of the persistent leakage and evaporation problems in ECD implementation. F1000 Research Limited 2022-06-06 /pmc/articles/PMC9184923/ /pubmed/35706997 http://dx.doi.org/10.12688/f1000research.73661.2 Text en Copyright: © 2022 Au BWC et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Au, Benedict Wen-Cheun
Chan, Kah-Yoong
Sahdan, Mohd Zainizan
Chong, Abraham Shiau-Iun
Knipp, Dietmar
Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title_full Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title_fullStr Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title_full_unstemmed Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title_short Realisation of Solid-State Electrochromic Devices Based on Gel Electrolyte
title_sort realisation of solid-state electrochromic devices based on gel electrolyte
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9184923/
https://www.ncbi.nlm.nih.gov/pubmed/35706997
http://dx.doi.org/10.12688/f1000research.73661.2
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