Dynamic behavior of Au cluster on the surface of silicon nanoparticles

✍ Scribed by Yuki Kimura; Hiroshi Ueno; Hitoshi Suzuki; Toshiaki Tanigaki; Takeshi Sato; Yoshio Saito; Chihiro Kaito

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 300 KB
• Volume: 19
• Category: Article
• ISSN: 1386-9477
• DOI: 10.1016/s1386-9477(03)00334-5

✦ Synopsis

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 di use into the Si nanoparticle at 680 • C and return to the surface at room temperature. The movement of di used 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.