Cyanated diazatetracene diimides with ultrahigh electron affinity for n-channel field effect transistors
KAUST DepartmentKAUST Catalysis Center (KCC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
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AbstractSeveral diazatetracene diimides with high electron affinity (up to 4.66 eV!) were prepared and well characterized. The LUMO energy level of these electron-deficient molecules was found to be closely related to their material stability. Compound 7 with ultrahigh electron affinity suffered from reduction and hydrolysis in the presence of silica gel or water. The stable compounds 3 and 6 showed n-channel FET behavior with an average electron mobility of 0.002 and 0.005 cm2 V-1 s-1, respectively, using a solution processing method. © 2013 American Chemical Society.
SponsorsThis work was financially supported by the National University of Singapore Start-Up Grant (R-143-000-486-133), MOE AcRF FRC grant (R-143-000-510-112), IMRE Core funding (IMRE/10-1P0509), and KAUST (K.-W.H.).
PublisherAmerican Chemical Society