STM light emission spectroscopy of surface micro-structures on granular Au films

K. Ito, S. Ohyama, Y. Uehara, S. Ushioda

Research output: Contribution to journalArticlepeer-review

55 Citations (Scopus)

Abstract

Light emission spectra from the gap region of a scanning tunneling microscope (STM) have been measured simultaneously with the cross-section of the surface topography. The spectra consist of two components centered about 1.7 and 2.0 eV. The intensity ratio between these components varies as the tip moves along different surface structures on the sample. We have found a correlation between the light emission spectra and the surface topography. We suggest a mechanism that can qualitatively explain the observed position-dependent spectra.

Original languageEnglish
Pages (from-to)282-288
Number of pages7
JournalSurface Science
Volume324
Issue number2-3
DOIs
Publication statusPublished - 1995 Feb 10

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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