Xiao group works on bioinspired hierarchical disordered photonic materials by integrating polymer physics, polymer chemistry, optics, colloidal interface and biomimetics. There are three main thrusts: (1) control the hierarchical degree of order in disordered photonic materials and explore how it affects the optical properties; (2) develop eco-friendly fabrication technologies to make structurally colored materials based on self-assembly approaches; (3) expand the application of disordered photonic materials in various scenarios such as thermal management and UV filtering.