Dioctyl-substituted dibenzotetracyanonaphthoquinodimethane for air-stable <i>n</i>-channel organic semiconductor

Abstract In this study, a novel n-channel 11,11,12,12-tetracyanonaphtho-2,6-quinodimethane-based organic semiconductor C8-DBTNAP was synthesized. C8-DBTNAP had good solubility and low-lying lowest unoccupied molecular orbital level (−4.41 eV). The good thin-film formability of C8-DBTNAP made it produce continuous, strip-shaped and uniform crystalline films. C8-DBTNAP organic thin-film transistors demonstrated high electron mobility up to 0.4 cm2/Vs under air conditions. These findings revealed that DBTNAP skeleton can be expected as a potential building block for developing high-performance, air-stable n-channel organic semiconductors.