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Orientationally ordered silicon nanocrystal cuboctahedra in superlattices

AuthorsYu, Yixuan; Mata, Maria de la ; Arbiol, Jordi ; Korgel, Brian A.
KeywordsTransformation matrix
Orientational order
Silicon nanocrystals
Issue Date2016
PublisherAmerican Chemical Society
CitationNano Letters 16(12): 7814-7821 (2016)
AbstractUniform silicon nanocrystals were synthesized with cuboctahedral shape and passivated with 1-dodecene capping ligands. Transmission electron microscopy, electron diffraction, and grazing incidence wide-angle and small-angle X-ray scattering show that these soft cuboctahedra assemble into face-centered cubic superlattices with orientational order. The preferred nanocrystal orientation was found to depend on the orientation of the superlattices on the substrate, indicating that the interactions with the substrate and assembly kinetics can influence the orientation of faceted nanocrystals in superlattices.
DescriptionThis is an open access article published under an ACS AuthorChoice License.-- et al.
Publisher version (URL)https://doi.org/10.1021/acs.nanolett.6b04006
Identifiersdoi: 10.1021/acs.nanolett.6b04006
e-issn: 1530-6992
issn: 1530-6984
Appears in Collections:(CIN2) Artículos
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