{"title":"Alternating Current-Driven Electrochromic Devices Based on Benzyl Viologen: AC Frequency Indicator","authors":"Weiyi Chen, Meng Wang, Shijie Xu, Lu Li, Xiaodi Liu, Debao Xiao","doi":"10.1002/elan.70063","DOIUrl":null,"url":null,"abstract":"<p>Electrochromic devices (ECDs) have been extensively studied worldwide due to their promising applications in various fields. To the best of our knowledge, all previously reported ECDs are exclusively driven by direct current (DC), which has been the conventional approach in electrochromic research. In this article, we propose that the ECD driven by alternating current (AC) should be testified. The ECDs were sandwiched in all-in-one mode using 1,1′-dibenzyl-4,4′-dipyridine dichloride as electrochromic chromophore. The electrochromic performance of the as-AC-driven ECDs was examined as a function of AC frequency from 0.1 to 1000 Hz. It is found that electrochromic based on dibenzyl viologen can work driven by AC, but with some differences from that by DC. The optical contrast is directly proportional to the logarithm value of AC frequency in the range from 0.1 to 1000 Hz, which suggests that the AC-driven ECD may potentially be useful as a visual indicator for AC frequency.</p>","PeriodicalId":162,"journal":{"name":"Electroanalysis","volume":"37 10","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electroanalysis","FirstCategoryId":"92","ListUrlMain":"https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/elan.70063","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Electrochromic devices (ECDs) have been extensively studied worldwide due to their promising applications in various fields. To the best of our knowledge, all previously reported ECDs are exclusively driven by direct current (DC), which has been the conventional approach in electrochromic research. In this article, we propose that the ECD driven by alternating current (AC) should be testified. The ECDs were sandwiched in all-in-one mode using 1,1′-dibenzyl-4,4′-dipyridine dichloride as electrochromic chromophore. The electrochromic performance of the as-AC-driven ECDs was examined as a function of AC frequency from 0.1 to 1000 Hz. It is found that electrochromic based on dibenzyl viologen can work driven by AC, but with some differences from that by DC. The optical contrast is directly proportional to the logarithm value of AC frequency in the range from 0.1 to 1000 Hz, which suggests that the AC-driven ECD may potentially be useful as a visual indicator for AC frequency.
期刊介绍：
Electroanalysis is an international, peer-reviewed journal covering all branches of electroanalytical chemistry, including both fundamental and application papers as well as reviews dealing with new electrochemical sensors and biosensors, nanobioelectronics devices, analytical voltammetry, potentiometry, new electrochemical detection schemes based on novel nanomaterials, fuel cells and biofuel cells, and important practical applications.
Serving as a vital communication link between the research labs and the field, Electroanalysis helps you to quickly adapt the latest innovations into practical clinical, environmental, food analysis, industrial and energy-related applications. Electroanalysis provides the most comprehensive coverage of the field and is the number one source for information on electroanalytical chemistry, electrochemical sensors and biosensors and fuel/biofuel cells.
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