▎ 摘　　要

Graphene and multiwalled carbon nanotube (CNT) composites have been reported to be suitable conductive inks for screen-printing technology, which is a viable option for electrode patterning in organic integrated circuits. Considering the physical properties of the graphene-CNT composite ink, the optimized screen-printing condi-tions produce graphene-CNT patterns with good pattern fidelity. In addition, the use of a centrifugal mixer enables the composite to disperse graphene and CNT molecules well, stabilizing electrical conductance. In this study, these screen-printed graphene-CNT electrodes were applied to fabricate organic field-effect transistors (OFETs) on a glass substrate. The p-and n-type devices performed satisfactorily. Furthermore, screen printing of graphene-CNT enabled the integration of OFETs for fabricating complementary inverters, NAND, and NOR gates. We believe that the characterization of graphene-CNT inks can promote the advancement of organic integrated circuits beyond unit OFET devices based on an easy-to-use screen-printing technique.