High-index facets in gold nanocrystals elucidated by coherent electron diffraction

Amish B. Shah, Sean T. Sivapalan, Brent M. Devetter, Timothy K. Yang, Jianguo Wen, Rohit Bhargava, Catherine J. Murphy, Jian Min Zuo

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1840-1846
Number of pages7
JournalNano Letters
Volume13
Issue number4
DOIs
StatePublished - Apr 10 2013

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Keywords

  • atomic structure
  • Au
  • Coherent electron diffraction
  • nanocrystallography

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

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