Transmission-Electron-Microscopy Study on Fivefold Twinned Silver Nanorods

Structural features of pentagonal Ag nanorods have been investigated by means of transmission electron microscopy (TEM). Cross-section observations directly reveal the remarkable fivefold twinning structure and related defects in this kind of nanomaterial. High-resolution TEM observations in combina...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2004-08, Vol.108 (32), p.12038-12043
Main Authors: Chen, Hanyuan, Gao, Yan, Zhang, Huairou, Liu, Libao, Yu, Hongchun, Tian, Huanfang, Xie, Sishen, Li, Jianqi
Format: Article
Language:English
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Summary:Structural features of pentagonal Ag nanorods have been investigated by means of transmission electron microscopy (TEM). Cross-section observations directly reveal the remarkable fivefold twinning structure and related defects in this kind of nanomaterial. High-resolution TEM observations in combination with fast-Fourier processing indicate that the well-defined twinning relationship appears on at least two of the five twinning boundaries. Electron-energy-loss spectroscopy analysis on the center regions of the nanorods demonstrates that the Ag-M4,5 peaks shift to lower energy in comparison with results from the Ag crystal.
ISSN:1520-6106
1520-5207
DOI:10.1021/jp048023d