Current-voltage characteristics of self-assembled monolayers by scanning tunneling microscopy
Current-voltage characteristics of self-assembled monolayers by scanning tunneling microscopy
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DOI：
10.1103/physrevlett.79.2530
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发表时间：
1997-09-29
影响因子：
8.6
通讯作者：
Kubiak, CP
中科院分区：
文献类型：
--
作者：
Datta, S;Tian, WD;Kubiak, CP
本文用扫描隧道显微镜探针测量了在金衬底上自组装的α， α′-二巯基分子单层的理论和实验电流-电压特性。用尖端分子距离作为唯一的“拟合参数”，得到了很好的定量一致性。我们研究的其他几个硫醇偶联分子也显示出类似的一致性。本文提出的概念图可以用于解释一般分子单层上的I-V测量。
This paper presents a comparison of the theoretical and experimental current-voltage (I-V) characteristics of a self-assembled monolayer of alpha,alpha'-xylyl dithiol molecules on a gold substrate measured with a scanning tunneling microscope probe. Good quantitative agreement is obtained with the tip-molecule distance as the only ''fitting parameter. Several other thiol-coupled molecules that we have studied also show similar agreement. The conceptual picture presented in this paper could be useful for the interpretation of I-V measurements on molecular monolayers in general.