基于硅基自组装膜的分子电子器件

Molecular electronics on silicon based on self assembled monolayers

文章综述了以硅为基底的自组装有机单层膜在分子电子器件中的应用,重点介绍了自组装膜的电子传导性,包括各种理论模型,如隧穿效应、热电子激发、Poole-Frankel激发以及跨越传导。此外,以烷基链(σ-分子),共轭链(π-分子)体系组成的自组装膜为基础的各种分子电子器件,如二极管、共振隧穿二极管,分子记忆和分子晶体管的概念、结构及工作原理也一并被讨论。

In this paper,we present an overview of various aspects of the self-assembly of organic monolayers on silicon substrates for molecular electronics applications.Various theoretical models,namely,tunneling（direct and Fowler-Nordheim）,thermioic emission,Poole-Frenkel emission and hopping conduction have been outline.Finally,the concepts and realization of various molecular electronic components,that is,diodes,resonant tunnel diodes,memories and transistors,based on appropriate architecture of self-assembled monolayers（SAMs） comprising of alkyl chains（σ-molecule） and conjugated molecules（π-molecule） have been presented too.