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dc.contributor.authorKe, Yujieen_US
dc.contributor.authorWang, Taoen_US
dc.contributor.authorLi, Naen_US
dc.contributor.authorWang, Shanchengen_US
dc.contributor.authorLong, Yien_US
dc.identifier.citationKe, Y., Wang, T., Li, N., Wang, S. & Long, Y. (2021). On-off near-infrared absorbance based on thermal-responsive plasmonic coupling in vanadium dioxide arrays for thermochromic windows. Optics Express, 29(6), 9324-9331.
dc.description.abstractVanadium dioxide (VO2) emerges as an attractive plasmonic material due to its unique reversible thermal-responsive phase transition and the promising application in energy-saving smart windows. Here, by optimizing the geometry of VO2 nano-cylinder arrays, we demonstrate a significant performance enhancement for energy-efficient thermochromic windows. Such a performance enhancement relies on the on-off behavior of plasmonic resonance in the extremely high packing density of VO2 nano-cylinder arrays. Different from the typical plasmonic material, silver, VO2 nano-cylinders are characterized to have strong absorbance in near-infrared spectrum with significantly weaker plasmonic coupling to their neighbors, making them suitable to be arranged with a high packing density. The VO2 nano-cylinder arrays exhibit a 160% luminous transmittance increment, comparing to a flat film with the same solar modulation of ~10%. The work provides a better understanding of the plasmonic behavior on phase-change VO2 and an efficient method to enhance smart window performance.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofOptics Expressen_US
dc.rights© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.en_US
dc.titleOn-off near-infrared absorbance based on thermal-responsive plasmonic coupling in vanadium dioxide arrays for thermochromic windowsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.description.versionPublished versionen_US
dc.subject.keywordsVanadium Dioxideen_US
dc.subject.keywordsThermochromic Windowsen_US
dc.description.acknowledgementY. Long thanks to the funding support by the National Research Foundation, Prime Minister’s Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme; Minister of Education Singapore Tier 1 RG86/20 and RG103/19; Singapore International Joint Research Institute.en_US
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