Abstract
The total current between the tip and the sample in a scanning tunnelling microscopy study of a solid/liquid interface can be dominated by Faradaic charge transfer currents. In such a situation, feedback control of the tunnelling gap, and imaging, is precluded. In this contribution we describe the preparation of glass and polymer coated STM tips that possess < 100 Å2 of exposed metal. These tips effectively discriminate against Faradaic current and enable STM imaging in the presence of reversible electroactive solution species at appreciable tip/sample biases. 1988 Blackwell Science Ltd
Original language | English |
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Pages (from-to) | 651-661 |
Number of pages | 11 |
Journal | Journal of Microscopy |
Volume | 152 |
Issue number | 3 |
DOIs | |
Publication status | Published - Dec 1988 |
Keywords
- STM
- electrochemistry
- tips
ASJC Scopus subject areas
- Pathology and Forensic Medicine
- Histology