机械力致变色光子晶体材料研究进展

目的 总结光子晶体材料在机械力致变色方面的研究现状,基于机械力致变色光子晶体的特点进行展望,为进一步研究和应用提供参考.方法 基于机械力的施加方式,从拉伸变色和压缩变色两个方面系统介绍了机械力致变色光子晶体的制备方法、光学性能以及机械性能,并分析比较了这两种光子晶体材料的应用现状和前景.结论 机械力致变色光子晶体在结构上有多种形式,包括嵌入胶体阵列的弹性体光子晶体、胶体交联光子晶体、层状光子晶体、链状光子晶体等,近些年这些光子晶体已经可以达到明亮的结构色和应变能力.机械力致变色光子晶体因其形式的多样性和良好的光学、机械性能,使其在应力检测、人体运动状态监测、防伪、显示等方面得以应用,具有很大的实际应用潜力.

Research Progress of Mechanochromic Photonic Crystal Materials

This paper summarized and looked forward to the development of photonic crystal materials in mechanically inducing color change study, hoping to provide reference for its further research and application. Two kinds of mechanical force-induced color change photonic crystals are introduced respectively based on the mechanical force form. Both the tensile-induced and the compression-induced color change photonic crystals are systematically discussed from their preparation, structure, optical and mechanical properties, application, and prospect. These photonic crystals have many forms in structure, including elastomers embedded in colloidal arrays, colloidal cross-linked photonic crystals, layered photonic crystals, chain photonic crystals, etc. Due to their bright structural colors and excellent mechanical properties, they were particularly used in stress detection, human motion state monitoring, anti-counterfeiting, display, etc. Great practical application potential is predictable along with their ongoing improvement.