Thermochromic Multicolored Photonic Coatings with Light Polarization- and Structural Color-Dependent Changes

Both temperature-responsive and patterned photonic coatings are receiving a lot of attention from fundamental application point view. However, the fabrication multicolor patterns, which also temperature-responsive, remains challenging. The current work presents thermochromic coating with light polarization-dependent multiple structural colors polymer-stabilized cholesteric liquid crystal siloxane oligomer. It is found that color temperature response can be manipulated by varying polymerization temperature, allowing patterns. During heating, each starts shifting at different until sample entirely blue high temperature. Upon cooling, pattern returns, showing reversible. On top that, linearly polarized dependency obtained, reflection when incident polarization angles. A multicolor, polarization- color-dependent features fabricated for demonstration.