title: High-index facets in gold nanocrystals elucidated by coherent electron diffraction.
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.
authors.affiliation: Center for Microanalysis of Materials, Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States.
authors.forename: Amish B
authors.initials: AB
authors.lastname: Shah
authors.forename: Sean T
authors.initials: ST
authors.lastname: Sivapalan
authors.forename: Brent M
authors.initials: BM
authors.lastname: DeVetter
authors.forename: Timothy K
authors.initials: TK
authors.lastname: Yang
authors.forename: Jianguo
authors.initials: J
authors.lastname: Wen
authors.forename: Rohit
authors.initials: R
authors.lastname: Bhargava
authors.forename: Catherine J
authors.initials: CJ
authors.lastname: Murphy
authors.forename: Jian-Min
authors.initials: JM
authors.lastname: Zuo
mesh_terms: D002384:Catalysis; D004583:Electrons; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D010984:Platinum / Q000737:chemistry; D013499:Surface Properties
chemical_list: D010984:Platinum; D006046:Gold