Light-induced wide range color switching of liquid crystal blue phase doped with hydrogen-bonded chiral azobenzene switches

A novel class of hydrogen-bonded chiral azobenzene switches was developed to induce an optically tunable liquid crystal blue phases (LC-BPs), which leads to the stabilization of the LC-BPs for a wider temperature range and is capable of a reversible phototuning of the reflection color of BP I over the visible wavelength region.