Evaluation of Photonic Materials with Biomimetic Structural Coloration

We conducted evaluation and observation of photonic materials with structural coloration using a spectrometer and the Nano Search Microscope. Using the spectrometer, we confirmed a shift in peak wavelength in the reflectance spectra that occurs according to the diameter of the PSt particles and the PDA coating thickness. We also confirmed a shift in peak wavelength in the reflectance spectra that occurs by changing the incident angle of light. Using the Nano Search Microscope, we confirmed a variation in particle arrangement that depends on the PDA coating thickness.