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Title: Anisotropic localized surface plasmon resonance of vanadium dioxide rods in flexible thermochromic film towards multifunctionality
Authors: Xu, Qiyang
Ke, Yujie
Feng, Chengchen
Chen, Cong
Wen, Zuohao
Wang, Haoran
Sun, Miaoyang
Liu, Xinghai
Liu, Hai
Magdassi, Shlomo
Li, Houbin
Huang, Chi
Long, Yi
Keywords: Engineering::Materials
Issue Date: 2021
Source: Xu, Q., Ke, Y., Feng, C., Chen, C., Wen, Z., Wang, H., Sun, M., Liu, X., Liu, H., Magdassi, S., Li, H., Huang, C. & Long, Y. (2021). Anisotropic localized surface plasmon resonance of vanadium dioxide rods in flexible thermochromic film towards multifunctionality. Solar Energy Materials and Solar Cells, 230, 111163-.
Project: RG86/20
Journal: Solar Energy Materials and Solar Cells
Abstract: Plasmonic thermochromic films are promising for smart window applications. Hereby, we develop a flexible plasmonic thermochromic film towards multifunctionality. The double-layer film consists of a bottom layer of W/Mg co-doped vanadium dioxide (VO2) rods in a polyurethane acrylate matrix and a top layer of hollow silica spheres (HSSs). Based on the finite-difference time-domain (FDTD) method, we demonstrate for the first time, a transverse and a longitudinal mode of VO2 localized surface plasmonic resonance (LSPR) in near- and mid-infrared bands, respectively, and only the transverse mode contributes to the solar energy modulation performance. The film shows a luminous transmittance of 46.2%, a solar energy modulation of 10.8%, and a critical transition temperature of 36.9 °C. The HSSs overcoating enhances the surface hydrophilicity and thermal insulation, which give rise to more favored functionalities for windows.
ISSN: 0927-0248
DOI: 10.1016/j.solmat.2021.111163
Schools: School of Materials Science and Engineering 
Rights: © 2021 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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