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

doi:10.1021/nl400609t

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 journal › Article › peer-review

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 language	English (US)
Pages (from-to)	1840-1846
Number of pages	7
Journal	Nano letters
Volume	13
Issue number	4
DOIs	https://doi.org/10.1021/nl400609t
State	Published - Apr 10 2013

Keywords

atomic structure
Au
Coherent electron diffraction
nanocrystallography

ASJC Scopus subject areas

Condensed Matter Physics
Bioengineering
General Chemistry
General Materials Science
Mechanical Engineering

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10.1021/nl400609t

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AU - Shah, Amish B.

AU - Sivapalan, Sean T.

AU - Devetter, Brent M.

AU - Yang, Timothy K.

AU - Wen, Jianguo

AU - Bhargava, Rohit

AU - Murphy, Catherine J.

AU - Zuo, Jian Min

PY - 2013/4/10

Y1 - 2013/4/10

N2 - 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.

AB - 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.

KW - atomic structure

KW - Au

KW - Coherent electron diffraction

KW - nanocrystallography

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

Abstract

Keywords

ASJC Scopus subject areas

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