Cu-Ag core-shell nanoparticles: A direct correlation between micro-Raman and electron microscopy

被引：84

作者：

Cazayous, M

Langlois, C

Oikawa, T

Ricolleau, C

Sacuto, A

机构：

[1] Univ Paris 07, UMR 7162, Lab Mat & Phenomenes Quat, F-75251 Paris, France

[2] Ecole Super Phys & Chim Ind Ville Paris, CNRS, Phys Solides Lab, UPR5, F-75231 Paris, France

[3] JEOL Ltd, Applicat & Res Ctr, Akishima, Tokyo 1968558, Japan

来源：

PHYSICAL REVIEW B | 2006年 / 73卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.73.113402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Vibration modes of metal core-shell nanoparticles have been measured by confocal micro-Raman spectroscopy. Compared to a standard macroscopic scale, the number of analyzed nanoparticles is reduced to 10(3)-10(4). We observed two distinct contributions in the same Raman spectrum originating from Cu-Ag core-shell and pure Ag nanoparticles. The nanoparticle sizes are calculated and successfully compared to the ones obtained by electron microscopy on the same micron-scale area. The bond matching between Cu core and Ag shell is pointed out from a conjugated Raman and transmission electron microscopy study.

引用

页数：4

共 17 条

[1] Surface plasmon mediated Raman scattering in metal nanoparticles [J].