A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response

J. Lu, B. Sain, P. Georgi, M. Protte, T. Bartley, T. Zentgraf, Advanced Optical Materials (2021).

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Abstract
Metasurfaces provide applications for a variety of flat elements and devices due to the ability to modulate light with subwavelength structures. The working principle meanwhile gives rise to the crucial problem and challenge to protect the metasurface from dust or clean the unavoidable contaminants during daily usage. Here, taking advantage of the intelligent bioinspired surfaces which exhibit self-cleaning properties, a versatile dielectric metasurface benefiting from the obtained superhydrophilic or quasi-superhydrophobic states is shown. The design is realized by embedding the metasurface inside a large area of wettability supporting structures, which is highly efficient in fabrication, and achieves both optical and wettability functionality at the same time. The superhydrophilic state enables an enhanced optical response with water, while the quasi-superhydrophobic state imparts the fragile antennas an ability to self-clean dust contamination. Furthermore, the metasurface can be easily switched and repeated between these two wettability or functional states by appropriate treatments in a repeatable way, without degrading the optical performance. The proposed design strategy will bring new opportunities to smart metasurfaces with improved optical performance, versatility, and physical stability.
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Advanced Optical Materials
Article Number
2101781
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Lu J, Sain B, Georgi P, Protte M, Bartley T, Zentgraf T. A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response. Advanced Optical Materials. Published online 2021. doi:10.1002/adom.202101781
Lu, J., Sain, B., Georgi, P., Protte, M., Bartley, T., & Zentgraf, T. (2021). A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response. Advanced Optical Materials, Article 2101781. https://doi.org/10.1002/adom.202101781
@article{Lu_Sain_Georgi_Protte_Bartley_Zentgraf_2021, title={A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response}, DOI={10.1002/adom.202101781}, number={2101781}, journal={Advanced Optical Materials}, publisher={Wiley}, author={Lu, Jinlong and Sain, Basudeb and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Zentgraf, Thomas}, year={2021} }
Lu, Jinlong, Basudeb Sain, Philip Georgi, Maximilian Protte, Tim Bartley, and Thomas Zentgraf. “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response.” Advanced Optical Materials, 2021. https://doi.org/10.1002/adom.202101781.
J. Lu, B. Sain, P. Georgi, M. Protte, T. Bartley, and T. Zentgraf, “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response,” Advanced Optical Materials, Art. no. 2101781, 2021, doi: 10.1002/adom.202101781.
Lu, Jinlong, et al. “A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response.” Advanced Optical Materials, 2101781, Wiley, 2021, doi:10.1002/adom.202101781.
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