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Title A tunable polymer-metal based anti-reflective metasurface
Date 29.11.2019
Number 57182
Abstract Anti–reflective surfaces are of great interest for optical devices, sensing, photovoltaics, and photocatalysis. However, most of the anti–reflective surfaces lack in situ tunability of the extinction with respect to wavelength. This communication demonstrates a tunable anti–reflective surface based on colloidal particles comprising a metal core with an electrochromic polymer shell. Random deposition of these particles on a reflective surface results in a decrease in the reflectance of up to 99.8% at the localized surface plasmon resonance frequency. This narrow band feature can be tuned by varying the pH or by application of an electric potential, resulting in wavelength shifts of up to 30 nm. Electrophoretic particle deposition is shown to be an efficient method for controlling the interparticle distance and thereby further optimizing the overall efficiency of the anti–reflective metasurface.
URL https://doi.org/10.1002/MARC.201900415
Publisher Macromolecular Rapid Communications
Identifier
Citation Macromolecular Rapid Communications (2019) Early view
DOI https://doi.org/10.1002/MARC.201900415
Authors Brasse, Y. ; Ng, C. ; Magnozzi, M. ; Zhang, H. ; Mulvaney, P. ; Fery, A. ; Gómez, D. E.
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