Self-Waveguide Single-Benzene Organic Crystal with Ultralow-Temperature Elasticity as a Potential Flexible Material
Self-Waveguide Single-Benzene Organic Crystal with Ultralow-Temperature Elasticity as a Potential Flexible Material
复制标题
DOI：
10.1002/anie.202011857
复制
发表时间：
2020-10-15
影响因子：
16.6
通讯作者：
Zhang, Hongyu
中科院分区：
文献类型：
--
作者：
Liu, Bin;Lu, Zhuoqun;Zhang, Hongyu
随着空间技术的日益普及和迅速进步，超低温柔性功能材料的开发面临着巨大的挑战。在此，我们报告了一种基于简单的单苯发射体的高发射有机晶体，结合了超低温弹性和自波导特性（当晶体被激发时，它会从自身发出光，光穿过晶体到达另一端）。该晶体在液氮（LN）中表现出优异的弹性弯曲能力。弯曲晶体中光波导的初步实验表明，晶体本身产生的光可以在170至-196摄氏度之间被限制在晶体体内并传播。这些结果不仅为设计具有超低温弹性的功能有机晶体提供了指导，而且将柔性材料的应用领域扩展到极端环境，例如空间技术。
With the increasing popularity and burgeoning progress of space technology, the development of ultralow-temperature flexible functional materials is a great challenge. Herein, we report a highly emissive organic crystal combining ultralow-temperature elasticity and self-waveguide properties (when a crystal is excited, it emits light from itself, which travels through the crystal to the other end) based on a simple single-benzene emitter. This crystal displayed excellent elastic bending ability in liquid nitrogen (LN). Preliminary experiments on optical waveguiding in the bent crystal demonstrated that the light generated by the crystal itself could be confined and propagated within the crystal body between 170 and -196 degrees C. These results not only suggest a guideline for designing functional organic crystals with ultralow-temperature elasticity but also expand the application region of flexible materials to extreme environments, such as space technology.