Lv Hongying, Wei Lingzhong, Guo Song, Zhang Xiaofeng, Chen Feixia, Qin Xiaojin, Wei Chun, Jiang Bingli, Gong Yongyang
College of Pharmacy, Guilin Medical University, Guilin, China.
Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education, Guangxi Key Laboratory of Optical and Electronic Materials and Devices, College of Materials Science and Engineering, Guilin University of Technology, Guilin, China.
Front Chem. 2022 Mar 7;10:807088. doi: 10.3389/fchem.2022.807088. eCollection 2022.
Dual-state emission (DSE) luminogens, a type of luminescent material which can effectively emit light in both dilute solution and solid states, have attracted tremendous attention, due to their widespread applications in chemical sensing, biological imaging, organic electronic devices, and so on. They overcome the shortcomings of aggregation-induced emission (AIE)-type compounds that do not emit light in dilute solutions and aggregation-caused quenching (ACQ)-type compounds that do not emit light in a concentrated or aggregated state. This work reports a novel ionic DSE material based on rigid rod-shaped organic conjugated structure using 4,4'-bis(2-sulfonatostyryl) biphenyl disodium salt (BSBDS); the ion repulsion effect can reduce the strong π-π interaction in aggregation and achieve high-efficiency luminescence in solution and solid states. In addition to excellent DSE characteristics, BSBDS also exhibits a mechanochromic nature and sensitive detection performance for aluminum ion (Al).
双态发射（DSE）发光剂是一类在稀溶液和固态中均能有效发光的发光材料，因其在化学传感、生物成像、有机电子器件等领域的广泛应用而备受关注。它们克服了聚集诱导发光（AIE）型化合物在稀溶液中不发光以及聚集导致猝灭（ACQ）型化合物在浓缩或聚集状态下不发光的缺点。这项工作报道了一种基于刚性棒状有机共轭结构的新型离子型DSE材料，该材料使用4,4'-双（2-磺酸钠苯乙烯基）联苯二钠盐（BSBDS）；离子排斥效应可以减少聚集中强烈的π-π相互作用，并在溶液和固态中实现高效发光。除了优异的DSE特性外，BSBDS还表现出机械变色性质以及对铝离子（Al）的灵敏检测性能。
