Polycyclic aromatic hydrocarbons (PAHs) have attracted considerable attention because of their optical and electronic properties, and their application as π-conjugated functional materials.[1] Fluorene is one of the simplest motifs in PAHs and its derivatives have been employed as important building blocks in a broad range of fields, including light-emitting devices, organic field-effect transistors (OFET), organic photovoltaic cells (OPV), ...
