We finally emphasized the generalizability of our findings by extending our research to the 496 coal asphaltene dimers. The data revealed that the previously founded inequalities The present study offers a theoretical interpretation for comprehending the relationship between asphaltene aggregation and its fluorescence variation. Furthermore, this work provides theoretical guidance to other areas of PAH-aggregate-related research as the aforementioned findings are applicable to a wide range of organic planar conjugated systems.