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Ryota IWAMORI
Researchmap
Assistant Professor (Research fellowship-PD)Institute for Advanced Academic Research / Graduate School of Engineering
Keywords
Structural color, Conjugated polymer, Artificial melanin particles, Biomimetic, Organic light-emitting diode
Professional Memberships
The Society of Polymer Science, The Chemical Society of Japan
Research Theme
Development of triple-mode devices consisting of structural, dye, and luminescence colors

Abstract
Colors in nature are composed of three types of colors: dye, structural, and luminescence colors, and combinations of these colors produce pure colors. In particular, the overlapping of yellow and red dye layers and blue light-reflecting structural color layers exhibit a complex and diverse range of color tones in parrot feathers. While the development of new color materials that utilize biomimetic mechanisms is attracting attention, low-molecular-weight dyes have low stability and fade when decomposed by the external environment.
In this research, we will develop stable and homogeneous dual-mode color materials by using polymeric dyes composed of conjugated polymers as the dye layer to overcome these issues. Furthermore, by incorporating conjugated polymers with electroluminescence (EL) properties into the material, we will try to develop triple-mode devices that show clear visibility in both bright and dark environments by turning the voltage on and off.