These data, and an increase of quantum yield in the solid state (Table and Figure S%) suggest that both compounds are AIE active molecule. However, in the solid state or aggregate state, additional complexity is due to the formation of excimer and intermolecular CT in the both cases of ( ) and ( ). thermally activated delayed fluorescence (TADF), the TADF observed in DMA-oC-PhEPy might not only be due to the aggregation of the o-carborane unit but also from the charge transfer between the carborane cage and the pyrene unit.