Figure 1: Orientation and structural schematic of TAT nanowire crystals.
From: Directional charge separation in isolated organic semiconductor crystalline nanowires

(Left) Photoluminescence (PL) of TAT nanowire crystals formed from solution-phase self assembly. (Center) PL image of isolated TAT nanowire with π-stacking direction oriented along laboratory Y axis. (Right) Structural schematic of TAT nanowire crystal showing relative orientation of crystallographic axes {a, b, c} with respect to laboratory X–Y plane. Scale bar, 300 nm.