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Successive, Seed‐Mediated Growth for the Synthesis of Single‐Crystal Gold Nanospheres with Uniform Diameters Controlled in the Range of 5–150 nm
Author(s) -
Zheng Yiqun,
Zhong Xiaolan,
Li Zhiyuan,
Xia Younan
Publication year - 2014
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201300256
Subject(s) - materials science , nanotechnology , fabrication , diffusion , spheres , crystal (programming language) , range (aeronautics) , single crystal , photonic crystal , chemical engineering , seed crystal , optoelectronics , crystallography , composite material , chemistry , medicine , alternative medicine , physics , pathology , astronomy , computer science , engineering , thermodynamics , programming language
A simple and robust route is described to the synthesis of single‐crystal Au nanospheres with diameters controlled in the range of 5 nm to 150 nm. The success of this synthesis relies on the use of single‐crystal Au spheres with different diameters as the seeds for successive growth and the use of a slow injection rate for the precursor to enable surface diffusion for the atoms added onto the surface of a seed. The diameters could be precisely controlled by varying the size and/or number of the seeds. The products exhibit excellent uniformity in terms of both size and shape and they are expected to find widespread use in a number of applications, including self‐assembly, fabrication of metallodielectric photonic crystals, plasmonics, and biomedical research.