Control and placement of molecules via self-assembly

被引:81
作者
Lewis, PA [1 ]
Donhauser, ZJ [1 ]
Mantooth, BA [1 ]
Smith, RK [1 ]
Bumm, LA [1 ]
Kelly, KF [1 ]
Weiss, PS [1 ]
机构
[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA
关键词
D O I
10.1088/0957-4484/12/3/306
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We use self- and directed assembly to pattern organic monolayers on the nanometre scale. The ability of the scanning tunnelling microscope to obtain both nanometre-scale structural and electronic information is used to characterize patterning techniques, to elucidate the intermolecular interactions that drive them and to probe the structures formed. We illustrate three successful approaches: (1) phase separation of self-assembled monolayers by terminal and internal functionalization, (2) phase separation of self-assembled monolayers induced by post-adsorption processing and (3) control of molecular placement by insertion into a self-assembled monolayer. These methods demonstrate the possibilities of patterning films by exploiting the intrinsic properties of the molecules. We employ these methods to prepare matrix-isolated samples to probe molecular electronic properties of single and bundled molecules.
引用
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页码:231 / 237
页数:7
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