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Etching and Dimerization: A Simple and Versatile Route to Dimers of Silver Nanospheres with a Range of Sizes
Author(s) -
Li Weiyang,
Camargo Pedro H. C.,
Au Leslie,
Zhang Qiang,
Rycenga Matthew,
Xia Younan
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200905245
Subject(s) - etching (microfabrication) , materials science , raman scattering , raman spectroscopy , range (aeronautics) , nanotechnology , chemical engineering , optics , composite material , physics , engineering , layer (electronics)
Two by two, hurrah! Hurrah! Dimers of Ag nanospheres with a range of sizes were generated by etching Ag nanocubes with Fe(NO 3 ) 3 in ethanol in the presence of poly(vinyl pyrrolidone) (PVP). These well‐defined dimers (see TEM image) enable systematic study of the hot‐spot phenomenon in surface‐enhanced Raman scattering (SERS).