In-line three-dimensional holography of nanocrystalline objects at atomic resolution

F.-R. Chen (), D. Van Dyck and C. Kisielowski
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F.-R. Chen: National Tsing-Hua University, 101 Kuang-Fu Road, Hsin Chu 300, Taiwan
D. Van Dyck: EMAT, University of Antwerp
C. Kisielowski: Lawrence Berkeley National Laboratory, The Molecular Foundry and Joint Center for Artificial Photosynthesis

Nature Communications, 2016, vol. 7, issue 1, 1-11

Abstract: Abstract Resolution and sensitivity of the latest generation aberration-corrected transmission electron microscopes allow the vast majority of single atoms to be imaged with sub-Ångstrom resolution and their locations determined in an image plane with a precision that exceeds the 1.9-pm wavelength of 300 kV electrons. Such unprecedented performance allows expansion of electron microscopic investigations with atomic resolution into the third dimension. Here we report a general tomographic method to recover the three-dimensional shape of a crystalline particle from high-resolution images of a single projection without the need for sample rotation. The method is compatible with low dose rate electron microscopy, which improves on signal quality, while minimizing electron beam-induced structure modifications even for small particles or surfaces. We apply it to germanium, gold and magnesium oxide particles, and achieve a depth resolution of 1–2 Å, which is smaller than inter-atomic distances.

Date: 2016
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DOI: 10.1038/ncomms10603

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