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dc.contributor.authorZhao, Xinpeng
dc.contributor.authorAlex Mofid, Sohrab
dc.contributor.authorGao, Tao
dc.contributor.authorTan, Gang
dc.contributor.authorJelle, Bjørn Petter
dc.contributor.authorYin, Xiaobo
dc.contributor.authorYang, Ronggui
dc.date.accessioned2020-04-20T09:12:47Z
dc.date.available2020-04-20T09:12:47Z
dc.date.created2020-03-09T15:36:48Z
dc.date.issued2020
dc.identifier.citationMaterials today physics. 2020, 13 1-9.en_US
dc.identifier.issn2542-5293
dc.identifier.urihttps://hdl.handle.net/11250/2651650
dc.description.abstractVanadium dioxide (VO2)–based thermochromic films are of great interest for energy-saving smart windows as they can dynamically change the solar transmittance as the ambient temperature changes. However, VO2 is thermodynamically unstable and could be easily oxidized by the oxygen and moisture in the ambient air. In this work, a durability-enhanced VO2 nanoparticle-polymer thermochromic film was proposed and fabricated using the blade coating method where the cross-linked and highly entangled poly(methyl methacrylate) (PMMA) chains with a molecular weight (~ 950,000) was adopted to block gas diffusion in the polymer matrix. It was shown that the developed VO2 nanoparticle film kept ~30% of its solar modulation ability after ~900 h of accelerated durability test in the aging environment with a temperature at 60 °C and ~95% relative humidity. This is ~4 times of the lifetime of the VO2 nanoparticles which are embedded in the non–cross-linked PMMA matrix with low molecular weight (~15,000). The cross-linked PMMA-VO2 film also showed a high luminous transmittance of ~50%, a high solar modulation ability of ~17%, and a low haze of ~11%. Our method provides an easy and effective strategy to improve the lifetime of VO2 nanoparticles, showing a promising pathway toward environmentally stable and easily scalable thermochromic films for energy-efficient smart windows.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleDurability-Enhanced Vanadium Dioxide Thermochromic Film for Smart Windowsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber1-9en_US
dc.source.volume13en_US
dc.source.journalMaterials today physicsen_US
dc.identifier.doihttps://doi.org/10.1016/j.mtphys.2020.100205
dc.identifier.cristin1800700
dc.relation.projectNorges forskningsråd: 245963en_US
dc.relation.projectNorges forskningsråd: 250159en_US
dc.description.localcode© 2020. This is the authors’ accepted and refereed manuscript to the article. Locked until 8.4.2022 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ "en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode0


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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