Release time:2023-10-19 Hits:
- Key Words:DESIGN; PHOTOPHYSICS; EMITTERS; BODIPY
- Abstract:Organic fluorescent molecules with pi-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 ious applications. In this work, highly planar 4-styrylbenzonitrile derivatives have been synthe-sized. 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 ious noncovalent interactions. These molecular arrangements could be essential for the observed strong emi 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. (C)& nbsp;2021 Elsevier B.V. All rights reserved.& nbsp;
- Volume:267
- Issue:子辑:2
- Translation or Not:no
