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 C1-12 alkyl group, a C1-12 alkoxy group, a halogenated C1-12 alkyl group, a halogenated C1-12 alkoxy group, a hydroxyl C1-12 alkyl group, a hydroxyl C1-12 alkoxy group, or a C1-12 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 heterojuction. The single molecule field effect transistor provided by the application can realize highly-efficient gate modulation.
本申请涉及一种通式如下的强极化分子:其中 A 表示极化性大于 2 C-m2/V 的基团;R1 和 R2 分别为氢、卤素、羟基、
氨基、
氰基、硝基、羧基、C1-12 烷基、C1-12 烷氧基、卤代 C1-12 烷基、卤代 C1-12 烷氧基、羟基 C1-12 烷基、羟基 C1-12 烷氧基或 C1-12 烷基
氨基;x1 和 x2 分别表示 0 或不小于 1 的整数;y1 和 y2 分别表示 0 或不小于 1 的整数。本申请还涉及一种强极化分子-
石墨烯分子异质结,以及一种单分子场效应晶体管,该晶体管包括衬底、栅极、介质层和强极化分子-
石墨烯分子异质结;介质层位于栅极和强极化分子-
石墨烯分子异质结之间。本申请提供的单分子场效应晶体管可实现高效的栅极调制。