3D morphology of Au and Au@Ag nanobipyramids

被引：34
作者：
Burgin, Julien [1 ]
Florea, Ileana [2 ]
Majimel, Jerome [1 ]
Dobri, Adam [1 ]
Ersen, Ovidiu [2 ]
Treguer-Delapierre, Mona [1 ]
机构：
[1] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France
[2] ULP, CNRS, UMR 7504, Inst Phys & Chim Mat Strasbourg, F-67087 Strasbourg, France
来源：
NANOSCALE | 2012年 / 4卷 / 04期
关键词：
ELECTRON-MICROSCOPY; OPTICAL-PROPERTIES; 3-DIMENSIONAL RECONSTRUCTION; GOLD NANOPARTICLES; SHAPE CONTROL; GROWTH; NANOCRYSTALS; MECHANISM;
D O I：
10.1039/c2nr11454b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The morphologies of Au and Au@Ag nanobipyramids were investigated using electron tomography. The 3D reconstruction reveals that the Au bipyramids have an irregular six-fold twinning structure with highly stepped dominant {151} facets. These short steps/edges stabilized via surface adsorbed CTAB favor the growth of silver on the lateral facets leading to strong blue shifts in longitudinal plasmon surface resonance.
引用
收藏
页码：1299 / 1303
页数：5
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