Inorganic Electrochromic Metasurface in the Visible
Color printing based on metallic or dielectric nanostructures has revolutionized color science due to its unprecedented subwavelength resolution. Evidently, the evolution toward the active control of such structural colors with smart materials is in progress for real applications. Here we experimentally demonstrate a large color gamut with high intensity and purity, as well as switching on and off based solely on tungsten trioxide (WO<sub>3</sub>) cylindrical resonators. The strong resonances in the visible spectral range in these WO<sub>3</sub> metasurfaces can be reversibly switched on and off due to its electrochromism by applying alternating voltages of +2.0 V and -0.3 V. Our approach opens up possibilities for the functional diversification of commercial smart windows, as well as the development of new display technologies in the future.
Authors
- Mario Hentschel (ORCID: https://orcid.org/0000-0002-6882-4183)
- Harald W. Giessen (ORCID: https://orcid.org/0000-0002-4270-3850)
- Jens Herbig (ORCID: https://orcid.org/0000-0003-1251-8029)
- Dominik Ludescher (ORCID: https://orcid.org/0009-0008-8508-0412)
- Monika Ubl
- Yohan Lee (ORCID: https://orcid.org/0000-0002-6809-3210)
- Andreas Georg
- Serkan Arslan
Institutions
- University of Stuttgart (DE)
- Fraunhofer Institute for Solar Energy Systems (DE)
Publication Details
- Journal
- Nano Letters
- Published
- 2025-04-24
- DOI
- https://doi.org/10.1021/acs.nanolett.5c01396
- Citations
- 5
- Primary Topic
- Metamaterials and Metasurfaces Applications
- Type
- article
- Field-Weighted Citation Impact
- 2.14
Funders
- Alexander von Humboldt-Stiftung
- Carl-Zeiss-Stiftung
- Deutsche Forschungsgemeinschaft
- Bundesministerium für Bildung und Forschung
- National Research Foundation of Korea
- European Research Council