Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11820
Title: Multispectral graphene-based electro-optical surfaces with reversible tunability from visible to microwave wavelengths
Authors: Ergoktas, M. Said
Bakan, Gökhan
Kovalska, Evgeniya
Le Fevre, Lewis W.
Fields, Richard P.
Steiner, Pietro
Yu, Xiaoxiao
Balcı, Sinan
Keywords: Graphene devices
Publisher: Nature Research
Abstract: Optical materials with colour changing abilities have been explored for use in display devices(1), smart windows(2,3) or in the modulation of visual appearance(4-6). The efficiency of these materials, however, has strong wavelength dependence, which limits their functionality to a specific spectral range. Here, we report graphene-based electro-optical devices with unprecedented optical tunability covering the entire electromagnetic spectrum from the visible to microwave. We achieve this non-volatile and reversible tunability by electro-intercalation of lithium into graphene layers in an optically accessible device structure. The unique colour changing capability, together with area-selective intercalation, inspires the fabrication of new multispectral devices, including display devices and electro-optical camouflage coating. We anticipate that these results provide realistic approaches for programmable smart optical surfaces with a potential utility in many scientific and engineering fields such as active plasmonics and adaptive thermal management.
URI: https://doi.org/10.1038/s41566-021-00791-1
https://hdl.handle.net/11147/11820
ISSN: 1749-4885
1749-4893
Appears in Collections:Photonics / Fotonik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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