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Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties

Electrochromic devices (ECDs) are a promising material for smart windows that are capable of transmittance variation. However, ECDs are still too expensive to achieve a wide market reach. Reducing fabrication cost remains a challenge. In this study, we inserted an IrO(2) buffer layer on Ti-doped V(2...

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Autores principales: Ko, Tien-Fu, Chen, Po-Wen, Li, Kuan-Ming, Young, Hong-Tsu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369766/
https://www.ncbi.nlm.nih.gov/pubmed/35897609
http://dx.doi.org/10.3390/ma15155179
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author Ko, Tien-Fu
Chen, Po-Wen
Li, Kuan-Ming
Young, Hong-Tsu
author_facet Ko, Tien-Fu
Chen, Po-Wen
Li, Kuan-Ming
Young, Hong-Tsu
author_sort Ko, Tien-Fu
collection PubMed
description Electrochromic devices (ECDs) are a promising material for smart windows that are capable of transmittance variation. However, ECDs are still too expensive to achieve a wide market reach. Reducing fabrication cost remains a challenge. In this study, we inserted an IrO(2) buffer layer on Ti-doped V(2)O(5) (Ti:V(2)O(5)) as a counter electrode using various Ar/O(2) gas flow ratios (1/2, 1/2.5, 1/3 and 1/3.5) in the fabrication process. The buffered-ECD resulted in a larger cyclic voltammetry (CV) area and the best surface average roughness (Ra = 3.91 nm) to promote electrochromic performance. It was fabricated using the low-cost, fast deposition process of vacuum cathodic arc plasma (CAP). This study investigates the influence of the IrO(2) buffer/Ti:V(2)O(5) electrode on ECD electrochemical and optical properties, in terms of color efficiency (CE) and cycle durability. The buffered ECD (glass/ITO/WO(3)/liquid electrolyte/IrO(2) buffer/Ti:V(2)O(5)/ITO/glass) demonstrated excellent optical transmittance modulation; ∆T = 57% (from T(bleaching) (67%) to T(coloring) (10%)) at 633 nm, which was higher than without the buffer (ITO/WO(3)/liquid electrolyte/Ti:V(2)O(5)/ITO) (∆T = 36%). In addition, by means of an IrO(2) buffer, the ECD exhibited high coloration efficiency of 96.1 cm(2)/mC and good durability, which decayed by only 2% after 1000 cycles.
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spelling pubmed-93697662022-08-12 Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties Ko, Tien-Fu Chen, Po-Wen Li, Kuan-Ming Young, Hong-Tsu Materials (Basel) Article Electrochromic devices (ECDs) are a promising material for smart windows that are capable of transmittance variation. However, ECDs are still too expensive to achieve a wide market reach. Reducing fabrication cost remains a challenge. In this study, we inserted an IrO(2) buffer layer on Ti-doped V(2)O(5) (Ti:V(2)O(5)) as a counter electrode using various Ar/O(2) gas flow ratios (1/2, 1/2.5, 1/3 and 1/3.5) in the fabrication process. The buffered-ECD resulted in a larger cyclic voltammetry (CV) area and the best surface average roughness (Ra = 3.91 nm) to promote electrochromic performance. It was fabricated using the low-cost, fast deposition process of vacuum cathodic arc plasma (CAP). This study investigates the influence of the IrO(2) buffer/Ti:V(2)O(5) electrode on ECD electrochemical and optical properties, in terms of color efficiency (CE) and cycle durability. The buffered ECD (glass/ITO/WO(3)/liquid electrolyte/IrO(2) buffer/Ti:V(2)O(5)/ITO/glass) demonstrated excellent optical transmittance modulation; ∆T = 57% (from T(bleaching) (67%) to T(coloring) (10%)) at 633 nm, which was higher than without the buffer (ITO/WO(3)/liquid electrolyte/Ti:V(2)O(5)/ITO) (∆T = 36%). In addition, by means of an IrO(2) buffer, the ECD exhibited high coloration efficiency of 96.1 cm(2)/mC and good durability, which decayed by only 2% after 1000 cycles. MDPI 2022-07-26 /pmc/articles/PMC9369766/ /pubmed/35897609 http://dx.doi.org/10.3390/ma15155179 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ko, Tien-Fu
Chen, Po-Wen
Li, Kuan-Ming
Young, Hong-Tsu
Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title_full Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title_fullStr Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title_full_unstemmed Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title_short Applied IrO(2) Buffer Layer as a Great Promoter on Ti-Doping V(2)O(5) Electrode to Enhance Electrochromic Device Properties
title_sort applied iro(2) buffer layer as a great promoter on ti-doping v(2)o(5) electrode to enhance electrochromic device properties
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9369766/
https://www.ncbi.nlm.nih.gov/pubmed/35897609
http://dx.doi.org/10.3390/ma15155179
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