This presentation focuses on the study of relationships between molecular structure, processing, charge transport property, and durability of polymer semiconductors that are capable of electron transport. Various series of alternating copolymer semiconductors containing imine and/or imide groups have been systematically investigated and applied to field-effect transistors to elucidate the factors that influence the charge-carrier mobility. The study has showed that molecular and interfacial engineering approaches enhance the electron mobility. The study has also provided useful feedback in designing new n-type and ambipolar polymer semiconductors, resulting in demonstration of high-performance transistors and complementary circuits. Last part of the talk briefly discusses issues of stability and durability of polymer semiconductors with considerations of thermodynamic and kinetic factors.

Structure-property relationship of electron-transporting polymer semiconductors for organic electronics

248th National Meeting (2014)

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