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Dimerization of Colloidal Particles through Controlled Aggregation for Enhanced Properties and Applications
Author(s) -
Gilroy Kyle D.,
Xia Younan
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201600979
Subject(s) - nanotechnology , colloid , nanoscopic scale , nanostructure , raman spectroscopy , materials science , plasmon , nanoparticle , dimer , chemical physics , colloidal particle , nanometre , surface enhanced raman spectroscopy , chemistry , optoelectronics , physics , raman scattering , optics , organic chemistry , composite material
Devising syntheses capable of precisely manipulating matter on the nanoscale is central to many areas of research. The underlying motivation is fueled by the fact that at the nanometer scale, the property has a strong correlation with the structure. One such nanostructure that has accrued much attention is the dimer—a structure composed of two colloidal particles separated by a small gap. This Focus Review discusses how colloidal stability can be strategically manipulated to induce dimerization, together with effective purification steps to further improve yields. We conclude the article by providing representative examples for how dimers composed of plasmonic nanoparticles leads to structures with tunable optical properties and strong electric near‐fields, ideal for application in surface‐enhanced Raman spectroscopy.