[8p-C212-1~16] 3.1 Basic optics and frontier of optics

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8p-C212-3] Color Tuning of Mie-Resonant Silicon Nanoparticles Paints Using Absorbing Materials

〇(M1)Yuta Haruoka¹, Hiroto Yamana¹, Hiroshi Sugimoto¹, Minoru Fujii¹ (1.Kobe Univ.)

Keywords:

silicon,structural color,nanoparticles

Silicon nanoparticles exhibit vivid structural colors based on Mie resonances. However, resin films containing these nanoparticles suffer from reduced color saturation due to multiple scattering and poor hiding power. In this study, carbon black (CB) was introduced as an absorbing material to suppress multiply scattered light and achieve both high color saturation and hiding power. Optical properties are evaluated through Monte Carlo simulations and experiments to clarify the effects of CB on reducing unwanted long-wavelength scattered light and transmitted light, and to investigate the feasibility of simultaneously improving color saturation and hiding power.