High-Index Facets in Gold Nanocrystals Elucidated by Coherent Electron Diffraction

被引：24
|
作者：
Shah, Amish B. [1 ]
Sivapalan, Sean T. [1 ,2 ]
DeVetter, Brent M. [1 ,3 ,4 ]
Yang, Timothy K. [5 ]
Wen, Jianguo [6 ]
Bhargava, Rohit [3 ,4 ,7 ,8 ]
Murphy, Catherine J. [1 ,2 ,5 ]
Zuo, Jian-Min [1 ,2 ]
机构：
[1] Univ Illinois, Ctr Microanal Mat, Mat Res Lab, Urbana, IL 61801 USA
[2] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
[3] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA
[4] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA
[5] Univ Illinois, Dept Chem, Urbana, IL 61801 USA
[6] Argonne Natl Lab, Ctr Electron Microscopy, Argonne, IL 60439 USA
[7] Univ Illinois, Dept Bioengn, Urbana, IL 61801 USA
[8] Univ Illinois, Dept Mech Sci & Engn, Micro & Nanotechnol Lab, Urbana, IL 61801 USA
来源：
NANO LETTERS | 2013年 / 13卷 / 04期
关键词：
Coherent electron diffraction; Au; nanocrystallography; atomic structure; SHAPE-CONTROLLED SYNTHESIS; METAL NANOPARTICLES; GROWTH; MICROSCOPY; NANORODS;
D O I：
10.1021/nl400609t
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Characterization of high-index facets in noble metal nanocrystals for plasmonics and catalysis has been a challenge due to their small sizes and complex shapes. Here, we present an approach to determine the high-index facets of nanocrystals using streaked Bragg reflections in coherent electron diffraction patterns, and provide a comparison of high-index facets on unusual nanostructures such as trisoctahedra. We report new high-index facets in trisoctahedra and previous unappreciated diversity in facet sharpness.
引用
收藏
页码：1840 / 1846
页数：7
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