Note: Electrochemical etching of silver tips in concentrated sulfuric acid

Hodgson P. A.; Wang Y.; Mohammad A. Awez; Kruse P.

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Note: Electrochemical etching of silver tips in concentrated sulfuric acid

机译：注意：在浓硫酸中对银笔尖进行电化学蚀刻

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Sharp metal tips have many uses, including in scanning probe microscopy. Silver is a particularly interesting metal for plasmonic enhancement, e.g., in tip-enhanced Raman spectroscopy, however few methods for the production of silver tips have been explored. A simple and reliable one step dc electrochemical method for the production of sharp silver tips in concentrated H2SO4 is presented. The optimal conditions are 10 V cell voltage and 99% sulfuric acid for tip radii below 100 nm. A LabView program was written to control the cut-off of the circuit to within a millisecond to avoid blunting the tips after drop-off.

机译：锋利的金属尖端有许多用途，包括在扫描探针显微镜中。银是用于等离子体增强的特别令人感兴趣的金属，例如在尖端增强的拉曼光谱中，但是几乎没有研究过用于生产银尖端的方法。提出了一种简单可靠的一步直流电化学方法，用于在浓H 2 SO 4 中生产尖锐的银针。对于低于100 nm的尖端半径，最佳条件是10 V电池电压和99％硫酸。编写了LabView程序，以将电路的截止时间控制在毫秒内，以避免在断开后使笔尖钝化。

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来源
《Review of Scientific Instruments》 |2013年第2期|p.1-3|共3页
作者
Hodgson P. A.; Wang Y.; Mohammad A. Awez; Kruse P.;
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作者单位

Department of Chemistry and Chemical Biology, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4M1, Canada;

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原文格式 PDF
正文语种 eng
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electrochemical analysis; etching; silver; virtual instrumentation; 8165Cf; 8280Fk;

机译：电化学分析蚀刻银;虚拟仪器;8165Cf;8280Fk;

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Note: Electrochemical etching of silver tips in concentrated sulfuric acid

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