Semiconductor Cocrystals Based on Boron: Generated Electrical Response with π-Rich Aromatic Molecules

Cocrystallization of a nonconductive, boron-based host with aromatic guests generates conductive cocrystals. Carrier mobilities of the cocrystals with either pyrene or tetrathiafulvalene were measured using conducting probe atomic force microscopy. The incorporation of the π-electron-rich aromatic guests results in electrically conductive cocrystals. The cocrystal with tetrathiafulvalene as a guest shows an approximately seven times higher charge carrier mobility than the cocrystal with pyrene.