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dc.contributor.authorCai, Guofaen_US
dc.contributor.authorZhu, Ruien_US
dc.contributor.authorLiu, Shiyouen_US
dc.contributor.authorWang, Jinhuien_US
dc.contributor.authorWei, Congyuanen_US
dc.contributor.authorGriffith, Kent J.en_US
dc.contributor.authorJia, Yuen_US
dc.contributor.authorLee, Pooi Seeen_US
dc.identifier.citationCai, G., Zhu, R., Liu, S., Wang, J., Wei, C., Griffith, K. J., Jia, Y. & Lee, P. S. (2022). Tunable intracrystal cavity in tungsten bronze-like bimetallic oxides for electrochromic energy storage. Advanced Energy Materials, 12(5), 2103106-.
dc.description.abstractDesigning materials with appropriate crystal and electronic structures to enhance ionic and electronic transport simultaneously are highly desirable for both electrochromic and electrochemical energy storage devices. It remains a great challenge to simultaneously meet these requirements. Here, a Nb18W16O93 nanomaterial is successfully synthesized with superstructure motifs and uniform self-supported electrochromic films are prepared on a transparent conductive substrate. The results show that the films can effectively accommodate lithium ions and facilitate intercalation–deintercalation on transparent fluorine-doped tin oxide (FTO) substrates at high current density. Mechanistic insights into the excellent electrochromic and rechargeable energy storage properties are provided by density functional theory (DFT) calculations. Specifically, the Nb18W16O93 film displays a large optical modulation (up to 93% at 633 nm and 89% at 1200 nm), high coloration efficiency (105.6 cm2 C−1), high energy storage capacity (151.4 mAh g−1 at 2 A g−1), excellent rate capability, and long-term electrochemical stability (6000 cycles). As a demonstration of its application, an energy storage indicator is illustrated and a complementary electrochromic energy storage smart window is fabricated based on the Nb18W16O93 film. The results demonstrate that the Nb18W16O93 nanomaterial has a promising application in the field of high-performance electrochromic and energy storage devices.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofAdvanced Energy Materialsen_US
dc.rights© 2021 The Authors. Advanced Energy Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.en_US
dc.titleTunable intracrystal cavity in tungsten bronze-like bimetallic oxides for electrochromic energy storageen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.organizationSingapore-HUJ Alliance for Research and Enterprise (SHARE)en_US
dc.contributor.organizationNanomaterials for Energy and Water Nexus (NEW)en_US
dc.contributor.organizationCampus for Research Excellence and Technological Enterprise (CREATE)en_US
dc.description.versionPublished versionen_US
dc.subject.keywordsBimetallic Oxidesen_US
dc.description.acknowledgementThis work is financially supported by the National Natural Science Foundation of China (U2004175, 51902086). The project is funded by the Campus for Research Excellence and Technological Enterprise (CREATE) programme under the National Research Foundation, Prime Minister’s Office, Singapore.en_US
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