Mediating stochastic switching of single molecules using chemical functionality

被引：95

作者：

Lewis, PA

Inman, CE

Yao, YX

Tour, JM

Hutchison, JE

Weiss, PS ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[3] Univ Oregon, Dept Chem, Eugene, OR 97403 USA

[4] Univ Oregon, Inst Mat Sci, Eugene, OR 97403 USA

[5] Rice Univ, Dept Chem, Houston, TX 77005 USA

[6] Rice Univ, Ctr Nanoscale Sci & Technol, Houston, TX 77005 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 39期

关键词：

D O I：

10.1021/ja038622i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have studied oligo(phenylene-ethynylene)s inserted into amide-containing alkanethiol self-assembled monolayers using scanning tunneling microscopy to demonstrate switching based on chemical functionality of the environment of the inserted molecules. The molecules show stability in two conductance states: an ON and an OFF state. We demonstrate bias-dependent switching due to hydrogen bonding between the inserted oligo(phenylene-ethynylene) and the matrix molecules. In addition, the inserted molecules exhibit fewer switching events than previously reported for alkanethiol matrixes, which we attribute to the rigidity of the hydrogen-bonded matrix. Copyright © 2004 American Chemical Society.

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页码：12214 / 12215

页数：2

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