Won Sik Yoon, Sang Kyu Park, Illhun Cho, Jeong-A Oh, Jong H. Kim and Soo Young Park High-Mobility n-Type Organic Transistors Based on a Crystallized Diketopyrrolopyrrole Derivative Advanced Functional Materials 23
A new dicyanovinyl-substituted diketopyrrolopyrrole (DPP)-based small molecule, DPP-T-DCV, shows outstanding electron mobility (μe) in solution-processed single-crystal OFETs (SC-OFETs). The molecular structure of DPP-T-DCV, SC-OFETs device structure, and atomic force microscopy images of the film surface of the DPP-T-DCV crystal device are shown. SC-OFETs exhibit μe as high as 0.96 cm2 V−1 s−1 with on/off current ratio of ≈105.
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