Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry , Beijing Normal University , Beijing 100875 , China.
CAS Key Laboratory of Photochemistry, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.
ACS Appl Mater Interfaces. 2018 Aug 8;10(31):26526-26532. doi: 10.1021/acsami.8b08490. Epub 2018 Jul 24.
We report the switchable optical waveguide microfibers based on fluorescent supramolecular polymer for the first time. The pillar[5]arene-based supramolecular polymeric microfibers were prepared easily from the viscous solution of bispillar[5]arene host (bisP5A) and diphenylanthracene-derived guest (GD). The resulting microfibers act as an active optical waveguide material with long propagation distance (400 μm) and low optical propagation loss (0.01 dB/μm). When photoresponsive dithienylethene-derived guest (GDTE) was added, the resulting ternary microfibers show switchable optical waveguide by the noninvasive control of UV/vis light with negligible fatigue over four cycles. This convenient preparation method is also applied for the quadruple-hydrogen-bonded fluorescent supramolecular polymeric microfibers which imply good light propagation property with an optical loss coefficient of 0.02 dB/μm.
我们首次报道了基于荧光超分子聚合物的可切换光学波导微纤维。基于[5]柱芳烃的超分子聚合物微纤维很容易从粘稠的双[5]柱芳烃主体（双 P5A）和二苯基蒽衍生客体（GD）的粘性溶液中制备得到。所得微纤维可作为活性光学波导材料，具有长传播距离（400 μm）和低光传播损耗（0.01 dB/μm）。当加入光响应二噻吩乙烯衍生客体（GDTE）时，所得三元微纤维通过非侵入性的紫外/可见光控制实现了可切换的光学波导，在四个循环中几乎没有疲劳。这种方便的制备方法也适用于四重氢键结合的荧光超分子聚合物微纤维，其具有良好的光传播性能，光损耗系数为 0.02 dB/μm。
