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响应性光子晶体以其亮丽的结构色彩及光学信号对外场刺激的响应性变化,在化学传感、智能显示等领域具有重要的应用前景.本文综述了快速响应聚合物光子晶体的研究进展.首先从原理上阐述了影响溶胀型光子晶体响应速率的因素,系统总结了针对不同因素提高其响应速率的研究工作,着重探讨了溶胀型光子晶体水凝胶的尺寸、聚合物链段的物理化学性能(包括多孔结构和亲疏水性)、凝胶网络的交联度等因素对响应速率的影响.同时也简要介绍了影响非溶胀型响应性光子晶体,如光、电、磁、机械力等外场诱导体系折光指数变化的响应性光子晶体的响应速率的因素.最后展望了响应性光子晶体的热点研究方向.这些工作对于提高光子晶体的响应速率,发展其在实时分析、在线检测等领域的应用具有重要意义.
Responsive photonic crystals have important application prospects in the field of chemical sensing and intelligent display due to their bright color and optical signal response to field stimuli.In this paper, the research progress of fast response polymer photonic crystals is reviewed.First, The factors that affect the response rate of the SWC are expounded in principle, and the research work of improving the response rate for different factors is summarized. The size of the SWP and the physicochemical properties of the polymer are discussed emphatically (Including porous structure and hydrophobicity), the degree of crosslinking of gel network and other factors on the response rate.At the same time also briefly introduced the impact of non-swelling responsive photonic crystals, such as light, electricity, magnetism, mechanical field and other field induction System refractive index changes in response to the photonic crystal response factor factors.Finally, the prospects for the research of responsive photonic crystal hot spots are put forward.These work to improve the photonic crystal response rate, the development of its application in real-time analysis, on-line detection and other fields Significance.