STRONGLY-POLARIZED MOLECULE, AND SINGLE MOLECULE FIELD EFFECT TRANSISTOR PREPARED THEREFROM

摘要

The application relates to a strongly-polarized molecule of the following general formula: wherein A denotes a group having a polarizability greater than 2 C·m²/V; R₁ and R₂ are respectively hydrogen, halogen, a hydroxyl group, an amino group, a cyano group, a nitro group, a carboxyl group, a C_1-12 alkyl group, a C_1-12 alkoxy group, a halogenated C_1-12 alkyl group, a halogenated C_1-12 alkoxy group, a hydroxyl C_1-12 alkyl group, a hydroxyl C_1-12 alkoxy group, or a C_1-12 alkyl amino group; x₁ and x₂ denote 0 or an integer no less than 1, respectively; and y₁ and y₂ denote 0 or an integer no less than 1, respectively. The application further relates to a strongly-polarized molecule-graphene molecule heterojunction, and a single molecule field effect transistor comprising a substrate, a gate, a dielectric layer and the strongly-polarized molecule-graphene molecule heterojunction; and the dielectric layer is located between the gate and the strongly-polarized molecule-graphene molecule heterojunction. The single molecule field effect transistor provided by the application can realize highly-efficient gate modulation.