Nano-application for structural color generation

Ryoichi Kuwano; Mizue Ebisawa; Makoto Hino; Tsuyoshi Tokunaga; Michiru Yamashita; Norihito Nagata; Nathan Hagen; Yokitoshi Otani

doi:10.1117/12.3005556

20 September 2023 Nano-application for structural color generation

Ryoichi Kuwano, Mizue Ebisawa, Makoto Hino, Tsuyoshi Tokunaga, Michiru Yamashita, Norihito Nagata, Nathan Hagen, Yokitoshi Otani

Author Affiliations +

Proceedings Volume 12607, Optical Technology and Measurement for Industrial Applications Conference; 126070O (2023) https://doi.org/10.1117/12.3005556
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

This paper proposes a process for generation of structural coloring without paint, involving the production of nano-scale porous shapes on the surface of aluminum alloys and sputtering with platinum particles. The first step is anodization, with micropores of 10 to 40 nm in diameter and oxide films of 71 to 1,151 nm in thickness formed on the surface. Coloration density was found to vary with sputtering times between 1 and 4 minutes. The results of the study showed that the process can be applied to generate a wide range of colors within the visible spectrum.

Citation Download Citation

Ryoichi Kuwano, Mizue Ebisawa, Makoto Hino, Tsuyoshi Tokunaga, Michiru Yamashita, Norihito Nagata, Nathan Hagen, and Yokitoshi Otani "Nano-application for structural color generation", Proc. SPIE 12607, Optical Technology and Measurement for Industrial Applications Conference, 126070O (20 September 2023); https://doi.org/10.1117/12.3005556

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