Journal
NANO LETTERS
Volume 15, Issue 7, Pages 4477-4482Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.5b00940
Keywords
two-dimensional; nanocrystals; simulation; thickness; unit-cell; XRD
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Funding
- National Natural Science Foundation of China [21233005]
- Fundamental Research Fund for the Central Universities [2014FZA3006]
- DOE Office of Science [DE-AC02-06CH11357]
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Discrete nature of thickness and flat basal planes of two-dimensional (2D) nanostructures display unique diffraction features. Their origin was uncovered by a new analysis method of powder X-ray diffraction, which reveals thickness and lattice orientation of the 2D nanostructures. Results indicate necessity of adoption of a different unit cell from the corresponding bulk crystal with the same internal atomic packing. For CdSe 2D nanostructures with zinc blende atomic packing, pseudotetragonal lattices are adequate, instead of face-centered cubic.
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