Orientationally Ordered Silicon Nanocrystal Cuboctahedra in Superlattices

Yixuan Yu; Xiaotang Lu; Adrien Guillaussier; Vikas Reddy Voggu; William Pineros; Maria De La Mata; Jordi Arbiol; Detlef M. Smilgies; Thomas M. Truskett; Brian A. Korgel

doi:10.1021/acs.nanolett.6b04006

Orientationally Ordered Silicon Nanocrystal Cuboctahedra in Superlattices

Yixuan Yu, Xiaotang Lu, Adrien Guillaussier, Vikas Reddy Voggu, William Pineros, Maria De La Mata, Jordi Arbiol, Detlef M. Smilgies, Thomas M. Truskett, Brian A. Korgel

Research output: Contribution to journal › Article › peer-review

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.

Original language	English (US)
Pages (from-to)	7814-7821
Number of pages	8
Journal	Nano letters
Volume	16
Issue number	12
DOIs	https://doi.org/10.1021/acs.nanolett.6b04006
State	Published - Dec 14 2016
Externally published	Yes

Keywords

Orientational order
silicon nanocrystals
superlattices
transformation matrix

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

Online availability

10.1021/acs.nanolett.6b04006

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title = "Orientationally Ordered Silicon Nanocrystal Cuboctahedra in Superlattices",

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.",

keywords = "Orientational order, silicon nanocrystals, superlattices, transformation matrix",

author = "Yixuan Yu and Xiaotang Lu and Adrien Guillaussier and Voggu, {Vikas Reddy} and William Pineros and {De La Mata}, Maria and Jordi Arbiol and Smilgies, {Detlef M.} and Truskett, {Thomas M.} and Korgel, {Brian A.}",

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doi = "10.1021/acs.nanolett.6b04006",

language = "English (US)",

volume = "16",

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T1 - Orientationally Ordered Silicon Nanocrystal Cuboctahedra in Superlattices

AU - Yu, Yixuan

AU - Lu, Xiaotang

AU - Guillaussier, Adrien

AU - Voggu, Vikas Reddy

AU - Pineros, William

AU - De La Mata, Maria

AU - Arbiol, Jordi

AU - Smilgies, Detlef M.

AU - Truskett, Thomas M.

AU - Korgel, Brian A.

PY - 2016/12/14

Y1 - 2016/12/14

N2 - 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.

AB - 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.

KW - Orientational order

KW - silicon nanocrystals

KW - superlattices

KW - transformation matrix

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Orientationally Ordered Silicon Nanocrystal Cuboctahedra in Superlattices

Abstract

Keywords

ASJC Scopus subject areas

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