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Updated: May 15, 2026

Probing Surface Electrochemical Activity of Nanomaterials using a Hybrid Atomic Force Microscope-Scanning Electrochemical Microscope (AFM-SECM)
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Published on: February 10, 2021

A leveling method based on current feedback mode of scanning electrochemical microscopy.

Lianhuan Han1, Ye Yuan, Jie Zhang

  • 1College of Chemistry and Chemical Engineering, and State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, China.

Analytical Chemistry
|January 8, 2013
PubMed
Summary

This study introduces a simple substrate leveling technique for scanning electrochemical microscopy (SECM). The method uses current feedback to quickly ensure a level substrate, improving SECM and electrochemical machining results.

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Area of Science:

  • Electrochemistry
  • Scanning Probe Microscopy

Background:

  • Substrate leveling is crucial for accurate Scanning Electrochemical Microscopy (SECM) but often overlooked.
  • Existing methods can be time-consuming or complex.

Purpose of the Study:

  • To present an effective and rapid substrate leveling technique for SECM.
  • To demonstrate the utility of the developed method in improving SECM data quality.

Main Methods:

  • Utilized the current feedback mode of SECM with an air-bearing rotary stage.
  • Characterized substrate levelness by analyzing periodic waveform signals in current feedback.
  • Adjusted tilt stage screws while monitoring current amplitude for leveling.

Main Results:

  • Developed a straightforward method for substrate leveling in SECM.
  • Achieved high-quality SECM feedback curves and images.
  • Demonstrated the technique's effectiveness in minutes.

Conclusions:

  • The presented substrate leveling method is efficient and valuable for SECM.
  • This technique can also benefit applications in electrochemical machining.