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Seeded growth of WO3 film on FTO substrate with tunable structures for stable electrochromic performance
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2016 (English)In: Integrated Ferroelectrics, ISSN 1058-4587, E-ISSN 1607-8489, Vol. 173, no 1, 109-116 p.Article in journal (Refereed) PublishedText
Abstract [en]

In this work, tungsten trioxide (WO3) film was prepared on FTO-coated glass substrates using a facile hydrothermal method. Detailed studies revealed that a variety of WO3 nanostructures-including nanosheets, nanoflakes, nanocuboids and 3D nanowire flowers could be obtained by tuning the composition of the precursor solution, where the additive ((NH4)(2)C2O4 and CO(NH2)(2)-(NH4)(2)C2O4)) content and solvent composition played important roles in controlling the shape and size of the WO3. These nanostructure films exhibited good electrochromic performance. The transmittance spectra showed that WO3 film displayed 50% and 70% in the range of visible light at the colored and bleached states (S2) and a potential of +/- 1.0V. There is no significant degradation of the electrochromic properties after 1000 continuous coloration/bleaching cycles, making it attractive for practical applications.

Place, publisher, year, edition, pages
Taylor & Francis, 2016. Vol. 173, no 1, 109-116 p.
Keyword [en]
WO3, electrochromic, additive, hydrothermal
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-190687DOI: 10.1080/10584587.2016.1176510ISI: 000379260500013ScopusID: 2-s2.0-84975060930OAI: diva2:952349

QC 20160812

Available from: 2016-08-12 Created: 2016-08-12 Last updated: 2016-08-15Bibliographically approved

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