Dynamic behavior of Au cluster on the surface of silicon nanoparticles

Yuki Kimura, Hiroshi Ueno, Hitoshi Suzuki, Toshiaki Tanigaki, Takeshi Sato, Yoshio Saito, Chihiro Kaito

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The high-temperature behavior of Au clusters on a Si nanoparticle surface has been studied using the atomic-resolution high-temperature stage of a transmission electron microscope. Au atoms diffuse into the Si nanoparticle at 680°C and return to the surface at room temperature. The movement of diffused Au atoms on the Si surface steps and the movement of Guinier-Preston-zone-like contrast observed for the segregation of Au atoms on the (1 1 1) Si plane, have been directly observed. These phenomena, which can be detected only at high temperatures, are presented in this paper.

Original languageEnglish
Pages (from-to)298-302
Number of pages5
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number3
Publication statusPublished - 2003 Aug


  • Au cluster
  • High-temperature behavior
  • In situ observation
  • Silicon particle
  • Transmission electron microscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics


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