Nonlocal Chemical Reactivity at Organic-Metal Interfaces

被引：46

作者：

Chen, Lan ^{[1
]}

Li, Hui ^{[3
]}

Wee, Andrew Thye Shen ^{[2
]}

机构：

[1] Natl Univ Singapore, Nanosci & Nanotechnol Initiat, Singapore 117542, Singapore

[2] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

[3] Natl Univ Singapore, Dept Chem, Singapore 117542, Singapore

来源：

ACS NANO | 2009年 / 3卷 / 11期

关键词：

chemical reactions; surface; scanning tunneling microscopy; interface; electron transport; CHARGE-TRANSFER; SURFACE-STATES; ELECTRON; MANIPULATION; MOLECULES; DYNAMICS;

D O I：

10.1021/nn900811t

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Understanding electron transport at the organic-inorganic interface is crucial for many research fields including surface physics and chemistry. In this article, we report the nonlocal chemical reactivity of one monolayer copper hexadecafluorophthalocyanine (F16CuPc) adsorbed on two different substrates, Ag(111) and Au(111), by injecting hot electrons from a scanning tunneling microscope tip. On the basis of experimental and theoretical results, the nonlocal reactions are proposed to strongly depend on hot-electron transport through molecule-substrate interface states. This observation of nonlocal reactivity increases our understanding of electron transport at organic-metal interfaces.

引用

页码：3684 / 3690

页数：7

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