多级次表面微纳米图案的构筑、光学性能及器件

动态多级次图案能够对材料表面的结构和性能进行按需调节与智能控制，是实现智能材料与器件的关键。然而，如何在表面上制备出动态、多级次复合的微纳米图案一直是该领域的巨大挑战。结合申请人在刺激响应性聚合物和动态褶皱图案化表面的工作基础上，本项目拟开发新型光控动态化学，将其引入到动态交联聚合物网络中，结合光直写褶皱、压印和组装等技术制备出表面微纳米复合图案，深入研究该多级次复合图案与材料的光学性能之间的关系，实现多级次表面图案及其光学性能的原位动态调控，探索其在原位变焦透镜、自适应伪装及光学信息加密等领域的应用，为构建智能响应性多级次图案化表面提供新思路。

Hierarchical stimuli-responsive surface pattern, which can realize the smart responsive surface with the dynamically tunable structures and properties, is the key to realize smart materials and devices yet remains challenging in its fabrication. By combining the stimuli-responsive polymer and dynamic surface pattern, here, we will develop some novel dynamic cross-linked polymer networks based on light-controlled dynamic chemistry. With these dynamic cross-linked polymer networks, we then fabricate hierarchical stimuli-responsive surface pattern with nano-imprinting, lithography and assembly technology. To fully realize the dynamic control of the wrinkling pattern and customized surface optical properties, we will further investigate the effect of dynamic hierarchical morphology on the surface optical properties. These investigations will provide a general and robust alternative to fabricate smart optical devices such as zoom lens in-situ, adaptive camouflage, and optical information encryption, whose properties can be tunable and on-demand controlled by environmental stimulus.