Cycling Durability of Electrochromic W-Ti Oxide Thin Films: Optical Transmittance Data Signal Dual Degradation Modes

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dc.authoridSORAR, IDRIS/0000-0002-1082-7576
dc.contributor.authorSorar, Idris
dc.contributor.authorGranqvist, Claes G.
dc.contributor.authorNiklasson, Gunnar A.
dc.date.accessioned2024-09-18T21:06:26Z
dc.date.available2024-09-18T21:06:26Z
dc.date.issued2020
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractElectrochemical degradation of electrochromic W oxide and W-Ti oxide thin films, prepared by reactive DC magnetron sputtering, was studied by voltammetric cycling in potential intervals from 1.5-4.0 to 2.0-4.0 V vs Li/Li+ in an electrolyte of lithium perchlorate in propylene carbonate. Cycling-dependent evolution of the upper and lower limits for the optical modulation range was critically dependent on potential interval. This phenomenon was analyzed through an extension of a previously formulated model for power-law dynamics; it was discovered that the upper and lower limits for the optical modulation range varied in distinctly different ways, and that only data acquired in the interval 2.0-4.0 V vs Li/Li+ could be reconciled with dispersive chemical kinetics. We thus find that our data on optical transmittance degradation lends strong support to the existence of dual degradation modes for electrochromism upon extended electrochemical cycling. This result is of great importance for the development of highly durable electrochromic devices such as smart windows for energy-efficient buildings. The present article is a sequel to a recent publication of ours [J. Electrochem. Soc., 166, H795 (2019)]. (c) 2020 The Electrochemical Society (ECS). Published on behalf of ECS by IOP Publishing Limited.en_US
dc.description.sponsorshipSwedish Research Council [VR-2016-03713]; Scientific and Technological Research Council of Turkey (TUBITAK); Vinnova [2016-03713] Funding Source: Vinnova; Swedish Research Council [2016-03713] Funding Source: Swedish Research Councilen_US
dc.description.sponsorshipFinancial support from the Swedish Research Council (VR-2016-03713) is gratefully acknowledged. IS thanks the Scientific and Technological Research Council of Turkey (TUBITAK) for financial support to work at Uppsala University.en_US
dc.identifier.doi10.1149/1945-7111/ab6dd6
dc.identifier.issn0013-4651
dc.identifier.issn1945-7111
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85081660118en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1149/1945-7111/ab6dd6
dc.identifier.urihttps://hdl.handle.net/20.500.12483/13595
dc.identifier.volume167en_US
dc.identifier.wosWOS:000517889800001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElectrochemical Soc Incen_US
dc.relation.ispartofJournal of The Electrochemical Societyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectEfficiencyen_US
dc.subjectWo3en_US
dc.titleCycling Durability of Electrochromic W-Ti Oxide Thin Films: Optical Transmittance Data Signal Dual Degradation Modesen_US
dc.typeArticleen_US

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