Eisele Max, Krüger Michael, Schenk Markus, Ziegler Alexander, Hommelhoff Peter
Max-Planck-Institut für Quantenoptik, Garching, Germany.
Rev Sci Instrum. 2011 Feb;82(2):026101. doi: 10.1063/1.3534078.
We present a simple method to produce sharp gold tips with excellent surface quality based on electrochemical etching with potassium chloride. Radii of curvature lie in the range of 20-40 nm and the surface roughness is measured to less than 0.8 nm. The tips are well suited for field emission, field ion microscopy, and likely for tip-enhanced Raman scattering as well as tip-enhanced near-field imaging.
我们提出了一种基于氯化钾电化学蚀刻来制备具有优异表面质量的尖锐金尖端的简单方法。曲率半径在20 - 40纳米范围内，表面粗糙度经测量小于0.8纳米。这些尖端非常适合用于场发射、场离子显微镜，也可能适用于尖端增强拉曼散射以及尖端增强近场成像。
