Laser-induced mutual transposition of the core and the shell of a Au@Pt nanosphere

被引：32

作者：

Ah, CS ^{[1
]}

Kim, SJ ^{[1
]}

Jang, DJ ^{[1
]}

机构：

[1] Seoul Natl Univ, Sch Chem, Seoul 151742, South Korea

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 11期

关键词：

D O I：

10.1021/jp0568125

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The mutual transposition of the core and the shell of a Au@Pt core-shell nanosphere has been obtained by employing picosecond laser pulses to excite the surface-plasmon resonances of platinum. The thermalized energy of the plasmon resonances makes the core metal of the gold melt earlier than the shell metal of platinum because of melting temperature differences and causes the gold to soak out of the core to the surface of the nanosphere. A new reversed core/shell Pt@Au core-shell nanosphere is formed with further irradiation.

引用

收藏

页码：5486 / 5489

页数：4

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