Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/146969
Title: On-off near-infrared absorbance based on thermal-responsive plasmonic coupling in vanadium dioxide arrays for thermochromic windows
Authors: Ke, Yujie
Wang, Tao
Li, Na
Wang, Shancheng
Long, Yi
Keywords: Engineering
Issue Date: 2021
Source: Ke, 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. https://dx.doi.org/10.1364/OE.419872
Journal: Optics Express
Abstract: Vanadium 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.
URI: https://hdl.handle.net/10356/146969
ISSN: 1094-4087
DOI: 10.1364/OE.419872
Rights: © 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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