Binary solvents of anhydrous ethanol and propylene carbonate for electrolytes of amorphous WO3 films to improve electrochromic performance

IF 5.5 3区 材料科学 Q1 ELECTROCHEMISTRY
Yu Liu, Longlong Chen, Jiangbin Su, Jinmei Bai, Zuming He
{"title":"Binary solvents of anhydrous ethanol and propylene carbonate for electrolytes of amorphous WO3 films to improve electrochromic performance","authors":"Yu Liu, Longlong Chen, Jiangbin Su, Jinmei Bai, Zuming He","doi":"10.1016/j.electacta.2024.145542","DOIUrl":null,"url":null,"abstract":"In this study, amorphous WO<sub>3</sub> thin films were deposited on indium-tin oxide substrates using radio frequency magnetron sputtering. Anhydrous ethanol (AE) and propylene carbonate (PC) served as binary solvents, with the WO<sub>3</sub> films evaluated in AE+PC-LiClO<sub>4</sub> electrolytes. By adjusting the volume percentage of AE, the physical properties of the electrolytes were modified to improve the fluidity and wetting behavior. The analysis of several aspects, such as migration of ions, capillary flow of electrolyte and electrochemical reaction rate, highlights the important influence of AE+PC binary solvent in reducing the response time. Notably, WO<sub>3</sub> films in AE+PC-LiClO<sub>4</sub> electrolyte with a 7/8 volume percentage of AE demonstrated exceptional optical modulation (Δ<em>T</em>=75.7%) and fast response times (<em>t</em><sub>c</sub>=6.41 s, <em>t</em><sub>b</sub>=2.29 s), alongside shortened the diffusion path, increased ion diffusion coefficients (<em>D</em><sub>a</sub>=4.4678 × 10<sup>−10</sup> cm<sup>2</sup>/s, <em>D</em><sub>c</sub> =8.2968 × 10<sup>−10</sup> cm<sup>2</sup>/s) and electrochemical active area. Based on these efforts, the feasibility of applying AE+PC binary solvent to WO<sub>3</sub> electrochromic thin films has been confirmed. These results offer valuable insights for the development of efficient electrolytes and their application in electrochromic devices.","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"113 1","pages":""},"PeriodicalIF":5.5000,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochimica Acta","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.electacta.2024.145542","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0

Abstract

In this study, amorphous WO3 thin films were deposited on indium-tin oxide substrates using radio frequency magnetron sputtering. Anhydrous ethanol (AE) and propylene carbonate (PC) served as binary solvents, with the WO3 films evaluated in AE+PC-LiClO4 electrolytes. By adjusting the volume percentage of AE, the physical properties of the electrolytes were modified to improve the fluidity and wetting behavior. The analysis of several aspects, such as migration of ions, capillary flow of electrolyte and electrochemical reaction rate, highlights the important influence of AE+PC binary solvent in reducing the response time. Notably, WO3 films in AE+PC-LiClO4 electrolyte with a 7/8 volume percentage of AE demonstrated exceptional optical modulation (ΔT=75.7%) and fast response times (tc=6.41 s, tb=2.29 s), alongside shortened the diffusion path, increased ion diffusion coefficients (Da=4.4678 × 10−10 cm2/s, Dc =8.2968 × 10−10 cm2/s) and electrochemical active area. Based on these efforts, the feasibility of applying AE+PC binary solvent to WO3 electrochromic thin films has been confirmed. These results offer valuable insights for the development of efficient electrolytes and their application in electrochromic devices.

Abstract Image

求助全文
约1分钟内获得全文 求助全文
来源期刊
Electrochimica Acta
Electrochimica Acta 工程技术-电化学
CiteScore
11.30
自引率
6.10%
发文量
1634
审稿时长
41 days
期刊介绍: Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信