Self-organization of uniform Ag nano-clusters on Sb-terminated Si(100) surface

Kang Ho Park, Jeong Sook Ha, Wan Soo Yun, El Hang Lee

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Nanometer sized Ag clusters were found to be uniformly formed in the initial stage of Ag growth on Sb-terminated Si(100) surfaces. Due to the saturation of Si dangling bonds by Sb adatoms, Ag clusters were grown on the Sb-terminated Si(100) surface without a Ag wetting layer. We found that the diameters and heights of Ag clusters were confined to a nanometer scale, and the size distribution was quite uniform compared to Ag growth on Sb-terminated Si(111). Those features are considered to result from the separation of Ag clusters by coherently aligned voids in the underlying Sb-terminated Si(100) surface. Tunneling spectroscopy measurements showed that the local conduction properties of Ag clusters gradually changed from semiconducting to metallic as Ag coverage increased.

Original languageEnglish
Pages (from-to)320-327
Number of pages8
JournalSurface Science
Volume415
Issue number3
DOIs
Publication statusPublished - 1998 Oct 9

Keywords

  • Antimony
  • Clusters
  • Morphology
  • Roughness and topography
  • Scanning tunneling microscopy
  • Scanning tunneling spectroscopy
  • Silicon
  • Silver
  • Surface electrical transport
  • Surface structure

ASJC Scopus subject areas

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

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