苯并噻二唑类化合物一维微-纳米线的制备及光波导性能

doi:10.19894/j.issn.1000-0518.210071

摘要/Abstract

摘要： 在一价铜的催化下,通过有机叠氮化合物与末端炔1,3-偶极环的“点击反应”合成1,4-二取代-1,2,3-三氮唑有机化合物4,7-双(1-苯基-1H-1,2,3-三氮唑-4-基)苯[c][1,2,5]噻二唑(BT-DC),并通过液相组装法制备了一维微-纳米线。该化合物中由于引入了强吸电子性质的苯并噻二唑结构单元,增强了分子内电荷转移的能力,因此具有良好的光学性质。该化合物的一维结构宽为500 nm~2 μm,长度可达100 μm以上的一维微-纳米线。通过扫描近场光学显微镜进一步发现,BT-DC被紫外激光激发后产生的荧光被限域在一维结构中,并沿着一维方向进行传导,在351 nm处的光学损耗系数R=0.61 dB/μm,表明聚集态结构具有较好的光波导性能。

关键词: 苯并噻二唑, 自组装, 微-纳米线, 光波导

Abstract: This study describes the synthesis of 1,4-disubstitued-1,2,3-triazole benzothiadiazole derivatives (4,7-bis(1-phenyl-1H-1,2,3-triazol-4-yl)benzo[c][1,2,5]thiadiazole, BT-DC) through Cu(Ⅰ)-catalyzed “Click” reaction. The well-defined one-dimensional micro-nanowires in large quantities and with high morphological purity are successfully fabricated using a liquid phase assembly method. The length of one-dimensional microwires is more than 100 μm with the width of 500 nm~2 μm. Meanwhile, these assembles show a typical characteristic of the waveguiding behavior. Scanning near-field optical microscopy finds that the fluorescence from the BT-DC excited with an ultraviolet laser is effectively confined in the microwire structure and propagates along the one-dimensional direction. The optical loss coefficient of BT-DC is 0.61 dB/μm at 351 nm, endowing potential applications in the field of optical devices.

Key words: Benzothiadiazole, Self-assembly, Micro-nanowires, Optical waveguide

中图分类号:

O621.2

陈松华, 陈欣, 刘永琦, 何美云, 付珊珊, 彭丽, 杨纪恩. 苯并噻二唑类化合物一维微-纳米线的制备及光波导性能[J]. 应用化学, 2021, 38(11): 1479-1485.

CHEN Song-Hua, CHEN Xin, LIU Yong-Qi, HE Mei-Yun, FU Shan-Shan, PENG Li, YANG Ji-En. Preparation and Optical Waveguide Property of Benzothiadiazole-Containing One Dimensional Micro-nanowires[J]. Chinese Journal of Applied Chemistry, 2021, 38(11): 1479-1485.

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