Please use this identifier to cite or link to this item: https://doi.org/10.1038/ncomms10254
Title: Three-dimensional controlled growth of monodisperse sub-50 nm heterogeneous nanocrystals
Authors: Liu, D
Xu, X
Du, Y
Qin, X 
Zhang, Y
Ma, C
Wen, S
Ren, W
Goldys, E.M
Piper, J.A
Dou, S
Liu, X 
Jin, D
Keywords: anion
lanthanide
metal nanoparticle
nanocrystal
nanoshell
oleic acid
anion
bottom-up approach
crystallography
experimental study
nanoparticle
Article
crystallization
crystallography
dispersion
growth regulation
molecule
nanofabrication
particle size
Issue Date: 2016
Publisher: Nature Publishing Group
Citation: Liu, D, Xu, X, Du, Y, Qin, X, Zhang, Y, Ma, C, Wen, S, Ren, W, Goldys, E.M, Piper, J.A, Dou, S, Liu, X, Jin, D (2016). Three-dimensional controlled growth of monodisperse sub-50 nm heterogeneous nanocrystals. Nature Communications 7 : 10254. ScholarBank@NUS Repository. https://doi.org/10.1038/ncomms10254
Abstract: The ultimate frontier in nanomaterials engineering is to realize their composition control with atomic scale precision to enable fabrication of nanoparticles with desirable size, shape and surface properties. Such control becomes even more useful when growing hybrid nanocrystals designed to integrate multiple functionalities. Here we report achieving such degree of control in a family of rare-earth-doped nanomaterials. We experimentally verify the co-existence and different roles of oleate anions (OA -) and molecules (OAH) in the crystal formation. We identify that the control over the ratio of OA - to OAH can be used to directionally inhibit, promote or etch the crystallographic facets of the nanoparticles. This control enables selective grafting of shells with complex morphologies grown over nanocrystal cores, thus allowing the fabrication of a diverse library of monodisperse sub-50 nm nanoparticles. With such programmable additive and subtractive engineering a variety of three-dimensional shapes can be implemented using a bottom-up scalable approach.
Source Title: Nature Communications
URI: https://scholarbank.nus.edu.sg/handle/10635/175446
ISSN: 20411723
DOI: 10.1038/ncomms10254
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