Wassel Ronald A, Credo Grace M, Fuierer Ryan R, Feldheim Daniel L, Gorman Christopher B
Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA.
J Am Chem Soc. 2004 Jan 14;126(1):295-300. doi: 10.1021/ja037651q.
The negative differential resistance (NDR) peak current observed in redox active self-assembled monolayer-based molecular junctions has been attenuated by controlling the composition of the molecular junction. Two approaches studied here include capping the electroactive ferrocenyl groups with beta-cyclodextrin and functionalizing the scanning tunneling microscope tip used to probe the self-assembled monolayer (SAM) with n-alkanethiols of different lengths. These are the first examples of systematic modification of the magnitude of the NDR response in a molecule-based system.
通过控制分子结的组成，基于氧化还原活性自组装单分子层的分子结中观察到的负微分电阻（NDR）峰值电流已被减弱。这里研究的两种方法包括用β-环糊精封端电活性二茂铁基团，以及用不同长度的正烷硫醇对用于探测自组装单分子层（SAM）的扫描隧道显微镜尖端进行功能化。这些是在基于分子的系统中对NDR响应幅度进行系统修饰的首个实例。
