Orientationally ordered silicon nanocrystal cuboctahedra in superlattices
Yu, Yixuan (University of Texas. Texas Materials Institute)
Lu, Xiaotang (University of Texas. Texas Materials Institute)
Guillaussier, Adrien (University of Texas. Texas Materials Institute)
Voggu, Vikas Reddy (University of Texas. Texas Materials Institute)
Pineros, William (University of Texas. Texas Materials Institute)
De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia)
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
Smilgies, Detlef-M. (Cornell University. Cornell High Energy Synchrotron Source)
Truskett, Thomas M. (University of Texas. Texas Materials Institute)
Korgel, Brian A. (University of Texas. Texas Materials Institute)

Date:	2016
Abstract:	Uniform 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.
Grants:	Ministerio de Economía y Competitividad MAT2014-59961-C2-2-R Ministerio de Economía y Competitividad SEV-2013-0295 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1638
Note:	This is an open access article published under an ACS AuthorChoice License. See Standard ACS AuthorChoice/Editors' Choice Usage Agreement - https://pubs.acs.org/page/policy/authorchoice_termsofuse.html
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Published in:	Nano letters, Vol. 16, issue 12 (2016) , p. 7814-7821, ISSN 1530-6992

DOI: 10.1021/acs.nanolett.6b04006

8 p, 9.7 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles