Preparation of STM tips for in‐situ characterization of electrode surfaces

Michael J. Heben, Moris M. Dovek, Nathan S. Lewis, Reginald M. Penner, Calvin F. Quate

Research output: Contribution to journalArticle

51 Citations (Scopus)

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 languageEnglish
Pages (from-to)651-661
Number of pages11
JournalJournal of Microscopy
Volume152
Issue number3
DOIs
Publication statusPublished - Dec 1988

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Keywords

  • STM
  • electrochemistry
  • tips

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

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