High performance, air stable n-type single crystal transistors based on core-tetrachlorinated perylene diimides

Organic single crystal transistors based on two kinds of core-tetrachlorinated perylene diimides (4ClPDIs) are fabricated. Compared with alkyl substituted 4ClPDI, the transistors based on fluoroalkyl substituted 4ClPDI exhibit an air-stable electron mobility of up to 1.43 cm(2) V-1 s(-1) and high photocurrent with an on/off ratio of 1000, which are associated with its close packing arrangement .