Cyano- and chloro-substituted coronene diimides as solution-processable electron-transporting semiconductors

Abstract

3,4,9,10-Tetracyano- and tetrachlorocoronene-1,6,7,12-tetracarboxy diimides with low LUMO levels at −3.9 to −4.2 eV are developed. These molecules manifest potent n-type semiconductive capability in solution-processed field-effect transistors, with electron mobilities of up to 0.16 cm² V⁻¹ s⁻¹ measured in air. The device performances of analogous molecules elucidate the importance of side chain structures in the semiconductive properties.