A Full-Visible-Spectrum Invisibility Cloak for Mesoscopic Metal Wires
| Autor: | Sang-Woo Kim, Byeong Wan An, Yoon Jong Moon, Byung Gwan Hyun, Eunjin Cho, Sun Kyung Kim, Jang Ung Park |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Mesoscopic physics
Materials science Scattering business.industry Mechanical Engineering Cloaking Bioengineering 02 engineering and technology General Chemistry Dielectric engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Micrometre Coating engineering Transmittance Optoelectronics General Materials Science 0210 nano-technology business Localized surface plasmon |
| Zdroj: | Nano Letters. 18:3865-3872 |
| ISSN: | 1530-6992 1530-6984 |
| DOI: | 10.1021/acs.nanolett.8b01157 |
| Popis: | Structured metals can sustain a very large scattering cross-section that is induced by localized surface plasmons, which often has an adverse effect on their use as transparent electrodes in displays, touch screens, and smart windows due to an issue of low clarity. Here, we report a broadband optical cloaking strategy for the network of mesoscopic metal wires with submicrometer to micrometer diameters, which is exploited for manufacturing and application of high-clarity metal-wires-based transparent electrodes. We prepare electrospun Ag wires with 300–1800 nm in diameter and perform a facile surface oxidation process to form Ag/Ag2O core/shell heterogeneous structures. The absorptive Ag2O shell, together with the coating of a dielectric cover, leads to the cancellation of electric multipole moments in Ag wires, thereby drastically suppressing plasmon-mediated scattering over the full visible spectrum and rendering Ag wires to be invisible. Simultaneously with the effect of invisibility, the transmittance ... |
| Databáze: | OpenAIRE |
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