有机半导体荧光传感材料及危险化学品检测应用

荧光传感材料作为有机半导体光电功能材料的重要组成之一,以其灵敏度高、选择性强、响应速度快等优势,成为当前化学传感领域的一个研究热点,近年来在反恐、禁毒等领域有着广泛的应用.然而目前,对荧光敏感材料各项性能参数的设计与优化,依然存在着经验性问题,需要基于构效结合思维,从待测物质的分子层次的物性认知出发,更有针对性地设计相应的传感材料.本文基于国内外前沿工作,结合本课题组多年在危险化学品荧光传感方向的经验,以爆炸物、神经毒剂和合成毒品的检测为例,对荧光敏感材料的设计原则和传感的分子级微观作用机制进行了系统论述.

Organic semiconductor fluorescent sensing materials and hazardous chemicals detection applications

Fluorescence sensing materials,as one of the important components of organic semiconductor photoelectric functional materials,have become a research hotspot in the field of chemical sensing due to their advantages of high sensitivity,strong selectivity and fast response.In recent years,fluorescence sensing materials have been widely used in the fields of anti-terrorism and drug control.However,at present,there are empirical problems in the design and optimization work of fluorescence sensitive materials.Therefore,it is necessary to design sensing materials based on structure-activity combination strategy,deeper understanding physical and chemical properties of the detection target species at molecular level.In this paper,combined with the domestic and overseas cutting-edge work,and our research group’s experience in the direction of fluorescence sensing of hazardous chemicals,the design of fluorescence sensitive materials via molecule scale mechanisms is systematically discussed.