Surface elemental mapping via glow discharge optical emission spectroscopy

Gerardo Gamez, Maxim Voronov, Steven J. Ray, Volker Hoffmann, Gary M. Hieftje, Johann Michler

Research output: Contribution to journalReview articlepeer-review

19 Scopus citations

Abstract

Glow discharge optical emission spectroscopy (GDOES) has evolved in the last couple of decades from direct bulk solid analysis to a high resolution depth-profiling technique. However, the achievable lateral resolution has been historically restricted to the diameter of the sputtered area, i.e. some millimetres. Recently, there has been a push toward characterizing and improving the GDOES limits of lateral resolution. In consequence, a door has been opened for applications to take advantage of the new information dimensions that the technique affords. It is important to sum what has been accomplished so far to clarify the current possibilities and opportunities for development. It will become evident that the data acquisition requirements of GDOES elemental mapping can only be met via spectral imaging. Accordingly, the studies performed to date will be reviewed with emphasis on the spectral imaging geometry that has been utilized.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume70
DOIs
StatePublished - Apr 2012

Keywords

  • Elemental analysis
  • Glow discharge
  • Hyperspectral imaging
  • Optical emission spectroscopy
  • Surface composition mapping

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