Flexible Multifunctional Photonic Crystal Fibers with Shape Memory Capability for Optical Waveguides and Electrical Sensors,Industrial & Engineering Chemistry Research

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Flexible Multifunctional Photonic Crystal Fibers with Shape Memory Capability for Optical Waveguides and Electrical Sensors
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2021-06-07 , DOI: 10.1021/acs.iecr.1c01153
Jie Cheng ₁ , Lele Zhang ₁ , Kai Zhao ₁ , Yunpeng Wang ₁ , Xianfei Cao ₁ , Shufen Zhang ₁ , Wenbin Niu ₁

Affiliation

Flexible multifunctional fibers have received much attention owing to their wide applications in biomedicine, smart wearable materials, tissue engineering, and sensors. However, the preparation of such flexible fibers with adaptability, multiple functions, and high performances has been a great challenge so far. In this paper, a new type of shape memory photonic crystal fibers (SMPFs) with optical and electrical functions is reported by coaxially growing Al₂O₃/ZnO photonic shells onto the polyester fiber surface. The resultant SMPFs exhibit tunable structural colors, anisotropic optical reflection property, and excellent mechanical robustness. Particularly, these SMPFs exhibit unique shape memory capability, which is otherwise difficult to achieve in those previous photonic fibers. Benefiting from the photonic band gap and the transparent inner core, these SMPFs show a distinct ability in guiding light into deep tissues along a special channel, enabling their application as a shape memory optical waveguide. In addition, the pyroelectric effect of ZnO allows their uses as a shape memory temperature sensor for dynamically monitoring mouth respiration, nose breathing, and infrared light in real time. This investigation provides a general platform for flexible multifunctional fibers, which is promising in deep tissue phototherapy, wearable electronics, and intelligent robotics.

中文翻译：

用于光波导和电传感器的具有形状记忆能力的柔性多功能光子晶体光纤

柔性多功能纤维因其在生物医学、智能可穿戴材料、组织工程和传感器等方面的广泛应用而备受关注。然而，迄今为止，制备这种具有适应性、多功能和高性能的柔性纤维一直是一个巨大的挑战。在本文中，通过同轴生长Al ₂ O ₃报道了一种具有光学和电学功能的新型形状记忆光子晶体光纤（SMPFs）。/ZnO 光子壳在聚酯纤维表面上。由此产生的 SMPF 表现出可调的结构颜色、各向异性的光学反射特性和优异的机械强度。特别是，这些 SMPF 表现出独特的形状记忆能力，这在以前的光子光纤中是难以实现的。受益于光子带隙和透明内核，这些 SMPF 显示出独特的能力，可将光沿着特殊通道引导到深层组织中，使其能够作为形状记忆光波导应用。此外，ZnO 的热释电效应使其可用作形状记忆温度传感器，用于实时动态监测口腔呼吸、鼻子呼吸和红外光。该研究为柔性多功能纤维提供了一个通用平台，

更新日期：2021-06-17

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