| 초록 |
Graphene nanoribbons (GNRs) have recently attracted much attention from both academia and industry because GNRs with a width smaller than 10 nm show semiconducting behavior that renders them suitable for active layer materials of electronic devices. Several methods have been reported to produce graphene nanoribbons: patterning, printing and direct laser writing. However, these methods are so uncontrollable and severe to fabricate that the quality of the resulting graphenes is largely restricted and therefore their applications are limited. Hence, it is strongly needed to develop a new method for synthesis of GNPs in mild condition. In this study, GNRs are synthesized from polyphenylene precursor with a unique nonrigid kinked backbone, which is converted into the corresponding polycyclic aromatic hydrocarbon by the Scholl reaction (oxidative cyclodehydrogenation). The synthesized GNRs exhibit ambipolar carrier transport behavior when those are used as active layer of OTFT device. |
