分子电子学致力于有机分子材料的功能性研究，以单个分子、超分子或分子簇制备电子元器件，进一步“自下而上”组装实现逻辑电路的功能。自组装单分子膜体系由于性质稳定、适用于大面积集成等优点（相比较于单个分子），是分子电子学领域研究的热点，具备在分子尺度上制备场效应晶体管的潜力。目前，基于自组装单分子膜的晶体管器件研究进展缓慢，面临着分子设计和器件构筑两方面的巨大挑战。本项目在申请人前期工作的基础上，一方面从分子功能设计出发，优化光栅调控和电场调控的单分子膜晶体管器件的性能；另一方面，从器件制备的角度，探索“垂直结构单分子膜隧穿晶体管”这一全新的器件构型，力争实现新功能和新方法的突破。本项目是对申请人前期工作的拓展、深化和创新，项目的实施将为新型分子尺度器件的研发提供技术方案和理论支持，推动分子电子学领域研究的实用化进程。

A major goal of molecular electronics is to understand the functional properties of single molecules and their ensembles. Ultimately this will pave the way for electronic components and electrical circuits made of molecular building blocks. Research on self-assembled monolayers (SAMs) is a hot topic in the field of molecular electronics, because they have more stable chemical/physical properties than single molecules, and are more amenable to mass production and integration. However, from the perspective of both molecule design and device fabrication, so far it is still very challenging to study on molecular scale devices, especially field-effect transistors (FETs) based on SAMs, i.e., SAMFETs. Based on the applicant's previous work, this project will on one hand focus on the improvement of light/electrical field modulated SAM devices by rational design of functional molecules. On the other hand, more significantly, we will try to introduce a new device configuration for vertical tunneling transistors based on SAMs. This project is the extension, deepening and innovation of applicant's previous work, which will provide technical method and theoretical support for the development of new molecular devices, at the same time promote the practical process of molecular electronics.