Control of Si-Based All-Dielectric Printing Color through Oxidation
| Autor: | Ikuto Hotta, Yusuke Nagasaki, Junichi Takahara, Masafumi Suzuki |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Fabrication Nanostructure business.industry Metamaterial 02 engineering and technology Color printing 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials Monocrystalline silicon Reflection (mathematics) Optoelectronics Electrical and Electronic Engineering Invisible ink 0210 nano-technology business Structural coloration Biotechnology |
| Zdroj: | ACS Photonics. 5:1460-1466 |
| ISSN: | 2330-4022 |
| Popis: | All-dielectric color printing by means of high-index Mie resonators has enabled wider control of reflection colors depending on structural geometry. However, modifying the geometry, including the height, by using conventional fabrication processes remains challenging, and drastic color modification approaches via the addition of a new tuning axis are required to extend color varieties and applications. Here, we demonstrate all-dielectric pixel color control through Si oxidation. Oxidized monocrystalline Si nanostructures exhibit wider tunability of brilliant reflection colors depending on the oxidation reaction. The different color change properties of each nanostructure enable the construction of an “invisible ink” that can hide color information. This approach for controlling printing color could be utilized to further extend color variation and reactive applications. |
| Databáze: | OpenAIRE |
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