有机分子纳米线的合成及其导体性质  

Synthesis and Conducting Properties of Organic Molecular Wires

作　　者：左国防[1] 雷新有[1] 张建斌[1] 

机构地区：[1]天水师范学院生命科学与化学学院,甘肃天水741000

出　　处：《微纳电子技术》2010年第4期217-222,共6页Micronanoelectronic Technology

基　　金：甘肃省自然科学基金资助项目(3ZS061-A25-028);甘肃省教育厅2008年科研资助项目

摘　　要：分子导线是分子电子学研究的重要内容,是分子电子器件的基础。结合分子导线的电子传导性对获取有机线性分子的方法进行了论述。指出共价合成法具有形貌和电子传递的可控性,但合成及纯化的困难限制了其进一步发展。自组装法尽管存在着结构缺陷,而且目标线性分子的直径和维度也难以控制,但其制备方法简单、灵活,所以是有机分子导线的主要研究方向。对一些研究者以自组装法为基础,通过分子间弱的相互作用、定向原子堆积、配位键等研发出的新的有机线性分子建构方法进行了介绍。目前,有机线性材料尽管在微纳电子器件的应用中很难与无机材料竞争,但其作为无机材料的补充,展示了良好的应用前景。Molecular wires are the important contents of molecular electronics and the basic of molecular electronic devices.The strategies to obtain organic linear structures associating with their interesting electronic conductibility are discussed.The main advantage of a covalent linear molecular wire is the architectural control of both its morphology and its electronic transfer,while the major drawback lies in the difficulties inherent to the synthesis and the purification.The structural defects with the approaches based on self-assembly are usually responsible for low performances,and it is hard to control the dimension and the diameter of the generated objects with self-assembly process,but this method is the mainly researching direction in molecular wires because of its simplicity and flexibility.Various approaches are discussed based on self-assembly by the use of multiple weak interactions,oriented atom stacking,coordination bonds,etc.At present,although these materials can hardly compete with inorganic materials,they show a promising application prospect as a complement to the inorganic materials.

关 键 词：分子电子器件 纳米导线 弱相互作用 超分子化学 传导性 

分 类 号：TB324[一般工业技术—材料科学与工程] O631.23[理学—高分子化学]