面向智能纺织品的动态结构色光子晶体薄膜OA

Aiming at conventional colloidal nanospheres faced challenges such as difficulties in large-scale preparation and insufficient stability of the constructed photonic crystal structures.In order to expand their practical application in flexible textiles,PS@SiO2 core-shell nanosphere with uniform sphericity and controllable size were used as structural units.It was dispersed in photo-curable monomer system(PHEA/PC)to prepare liquid photonic crystals with vivid structural colors,precise adjustment of the photonic band gap and color regulation were achieved.Furthermore,the liquid system was solidified via ultraviolet polymerization to successfully obtain non-close-packed array flexible photonic crystal film.The film exhibited notable iridescence and excellent flexibility,along with distinct mechanochromic behavior under strain,in which the structural color shifted toward blue as the film was stretched.It provided potential application prospects for the development of new types of smart wearable textile materials.