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4 October 2023 Humidity-responsive full color nano-pixels via nanoporous Fabry-Pérot structure
Jaekyung Kim, Byoungsu Ko, Younghwan Yang, Junsuk Rho
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Proceedings Volume PC12646, Metamaterials, Metadevices, and Metasystems 2023; PC126460B (2023) https://doi.org/10.1117/12.2677174
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
Here, we developed humidity-responsive full color nano-pixels with 700nm resolution using 3D nanoimprinted polyvinyl alcohol (PVA) and disordered silver nanoparticles (NPs). The nano-pixels are designed as Fabry-Pérot structure which is composed of an aluminum mirror substrate, humidity-responsive PVA spacer, and disordered silver nanoparticles as top metal layer. The proposed structure has three main merits as follows. It has 1) high resolution thanks to 3D nanoimprinted PVA technique, and 2) millisecond-response time (441ms), 3) vivid color generation thanks to disordered silver NPs which enhance the penetration speed of water molecules into the PVA layer and have highly absorbing dielectric optical property.
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Jaekyung Kim, Byoungsu Ko, Younghwan Yang, and Junsuk Rho "Humidity-responsive full color nano-pixels via nanoporous Fabry-Pérot structure", Proc. SPIE PC12646, Metamaterials, Metadevices, and Metasystems 2023, PC126460B (4 October 2023); https://doi.org/10.1117/12.2677174
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KEYWORDS
Humidity
Nanoparticles
Polyvinyl alcohol
Silver
Metals
Magnetism
Molecules
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