Measuring Lattice Strain in Three Dimensions through Electron Microscopy

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• 作者：Bart Goris ; Jan De Beenhouwer ; Annick De Backer ; Daniele Zanaga ; K. Joost Batenburg ; Ana S谩nchez-Iglesias ; Luis M. Liz-Marz谩n ; Sandra Van Aert ; Sara Bals ; Jan Sijbers ; Gustaaf Van Tendeloo
• 刊名：Nano Letters
• 出版年：2015
• 出版时间：October 14, 2015
• 年：2015
• 卷：15
• 期：10
• 页码：6996-7001
• 全文大小：367K
• ISSN：1530-6992

文摘

The three-dimensional (3D) atomic structure of nanomaterials, including strain, is crucial to understand their properties. Here, we investigate lattice strain in Au nanodecahedra using electron tomography. Although different electron tomography techniques enabled 3D characterizations of nanostructures at the atomic level, a reliable determination of lattice strain is not straightforward. We therefore propose a novel model-based approach from which atomic coordinates are measured. Our findings demonstrate the importance of investigating lattice strain in 3D.