Hydrogen-bonded semiconducting pigments for air-stable field-effect transistors.

Głowacki, Eric Daniel; Irimia-Vladu, Mihai; Kaltenbrunner, Martin; Gsiorowski, Jacek; White, Matthew S; Monkowius, Uwe; Romanazzi, Giuseppe; Suranna, Gian Paolo et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

Extensive intramolecular π-conjugation is considered to be requisite in the design of organic semiconductors. Here, two inkjet pigments, epindolidione and quinacridone, that break this design rule are explored. These molecules afford intermolecular π-stacking reinforced by hydrogen-bonding bridges. Air-stable organic field effect transistors are reported that support mobilities up to 1.5 cm(2)/Vs with T80 lifetimes comparable with the most stable reported organic semiconducting materials.