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Flexible Luminescent Organic Bulk Crystal: 2D Elasticity toward 3D Optical Waveguide

机译:柔性发光有机体晶体:3D光波导具有2D弹性

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The study of elastic organic single crystals becomes a hot research field in the crystal engineering, and elastic bending of needle-like crystals has been carefully investigated recently. Herein, based on a structurally simple molecule dimethyl 2,5-diaminoterephthalate (DMDAT), the organic crystals which display not only elastic bending ability but also elastic twisting ability under applied stress are reported. These ribbon-like DMDAT crystals are fully flexible and can be freely bended and twisted, thus forming any 3D conformation. Moreover, the unique X-shaped tetrasubstituted benzene structure enables DMDAT crystals to display efficient yellow emission based on a very small pi-system. Taking these advantages, 3D optical waveguide is successfully realized in the DMDAT crystal with a highly twisted 3D belt-shaped structure, demonstrating the ultimate 3D application of flexible organic bulk crystals.
机译:弹性有机单晶的研究成为晶体工程中的一个热门研究领域,针状晶体的弹性弯曲最近已被仔细研究。本文中,基于结构简单的分子2,5-二氨基对苯二甲酸二甲酯(DMDAT),报道了在施加应力下不仅表现出弹性弯曲能力而且表现出弹性扭曲能力的有机晶体。这些带状DMDAT晶体具有充分的柔韧性,可以自由弯曲和扭曲,从而形成任何3D构象。此外,独特的X形四取代苯结构使DMDAT晶体能够基于非常小的pi系统显示出有效的黄光发射。利用这些优势,在具有高度扭曲的3D带状结构的DMDAT晶体中成功实现了3D光波导,证明了柔性有机体晶体的最终3D应用。

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