期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 78, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.2804132
关键词
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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.
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