Chemical Physics Letters, Vol.660, 143-148, 2016
Dendritic copper phthalocyanine with aggregation induced blue emission and solid-state fluorescence
In this work, dendritic copper phthalocyanine (CuPc) showing obvious aggregation induced emission (AIE) and strong solid-state fluorescence was synthesized. It was found that synthesized CuPc can be easily solubilized in polar aprotic solvent, where no fluorescence signal was detected. Interestingly, both the CuPc aggregates in solution and solid-state powder exhibited strong fluorescence emission around 480 nm, which should be attributed to the restriction of intramolecular rotation as rationalized in aggregation induced emission framework. Meanwhile the obvious crystalline enhanced solid-state fluorescent emission is observed for CuPc powder. (C) 2016 Elsevier B.V. All rights reserved.
Keywords:Copper phthalocyanine;Fluorescence;Aggregation induced emission;Solid state luminescence;Crystalline