Chemically induced potential barriers at the carbon nanotube-metal nanoparticle interface

被引：131

作者：

Kauffman, Douglas R. ^{[1
]}

Star, Alexander ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 07期

关键词：

D O I：

10.1021/nl070330i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-walled carbon nanotube (SWNT) field effect transistors were electrochemically decorated with Pt, Pd, Au, and Ag nanoparticles. Upon exposure to 10 ppm NO gas in N-2 a trend was found wherein the magnitude of electron transfer into the SWNT valence band scaled with the work function of the individual metal. This trend gives experimental support for the formation of a metal work function dependent potential barrier at the SWNT-nanoparticle interface.

引用

页码：1863 / 1868

页数：6

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