High electron mobility in room-temperature discotic liquid-crystalline perylene diimides

Perylene diimide discotic columnar liquid-crystalline mesophases (see Figure) can show very high electron mobilities under ambient conditions. While the mobilities are strongly dependent on sample morphology and processing conditions, mobilities as high as 1.3 cm(2) V-1 s(-1) are measured, greater than that of amorphous silicon.