Single-step electrochemical method for producing very sharp Au scanning tunneling microscopy tips

被引：21

作者：

Gingery, David ^{[1
]}

Buehlmann, Philippe ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2007年 / 78卷 / 11期

关键词：

D O I：

10.1063/1.2804132

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A single-step electrochemical method for making sharp gold scanning tunneling microscopy tips is described. 3.0M NaCl in 1% perchloric acid is compared to several previously reported etchants. The addition of perchloric acid to sodium chloride solutions drastically shortens etching times and is shown by transmission electron microscopy to produce very sharp tips with a mean radius of curvature of 15 nm. (C) 2007 American Institute of Physics.

引用

页数：4

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