| Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2018) | |
| Nanomaterials | Wednesday Sessions |
| Session NM-WeP |
| Session: | Nanomaterials Poster Session II |
| Presenter: | Tomoki Nishino, Ritsumeikan University, Japan |
| Authors: | T. Nishino, Ritsumeikan University, Japan H. Tanigawa, Ritsumeikan University, Japan A. Sekiguchi, Litho Tech Japan Corporation, Japan |
| Correspondent: | Click to Email |
In recent years, biomimetic technologies have been extensively studied. Morpho butterflies are representative examples of structural colors, and many scientists have done research. On the wing, small thin plates called scales with a size of 70 x 150 μm and a thickness of a few microns are spread like roof tiles. When one scaled powder is enlarged, it has a streaky structure on the scale, this streak is called ridge. It is a characteristic of morpho butter that each of the ridges (lid interval: 1 μm) appears blue.
In this paper, the morpho structure can be fabricated by using lithography technology. The standing wave effect is exposure unevenness generated in the resist film when the photoresist on the Si substrate is exposed with monochromatic exposure light. Two reflected lights of the resist surface and the Si substrate cause interference waves. It strengthens and weakens according to the film thickness. No interference wave is generated by the reflected light of the Si substrate, and constant reflection intensity of light is always obtained.
Patterning was performed on the resist, cross-sectional development was performed, and the standing wave effect in the resist film was confirmed.
We propose that the morpho structure can be fabricated by using lithography technology.