聚集诱导发射
荧光
分子内力
分子
发光
固态
平面的
材料科学
共轭体系
纳米技术
小分子
光化学
化学
聚合物
光电子学
立体化学
有机化学
物理化学
光学
计算机图形学(图像)
复合材料
物理
生物化学
计算机科学
作者
Ying Fang,Yuanyuan Meng,Chunming Yuan,Chang Du,Kunpeng Wang,Shaojin Chen,Zhi‐Qiang Hu
标识
DOI:10.1016/j.saa.2021.120575
摘要
Organic fluorescent molecules with π-conjugated system have shown great importance in numerous applications including bioimaging and optoelectronics. Planar aggregation-induced emissive (AIE) organic compounds with efficient solid-state luminescence are rarely developed and urgently needed in various applications. In this work, highly planar 4-styrylbenzonitrile derivatives have been synthesized. Most of these compounds show strong AIE properties with hundred-fold fluorescent enhancement. Moreover, these molecules are deep blue emissive in solid state, exhibiting good to excellent fluorescence quantum efficiency. The single crystal analysis shows that adjacent molecules could form special J-type aggregation. The intramolecular rotations are efficiently restricted by various noncovalent interactions. These molecular arrangements could be essential for the observed strong emission in aggregated and solid state. This work has paved a new path to efficient AIE-active organic emitters with highly planar conformations from 4-styrylbenzonitrile structure.
科研通智能强力驱动
Strongly Powered by AbleSci AI