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A facile synthesis of branched silver nanowire structures and its applications in surface-enhanced Raman scattering

Cong, Feng-Zi; Wei, Hong; Tian, Xiao-Rui and Xu, Hongxing LU (2012) In Frontiers of Physics 7(5). p.521-526
Abstract
We report a facile method of preparing novel branched silver nanowire structures such as Y-shaped, K-shaped and other multi-branched nanowires. These branched nanostructures are synthesized by reducing silver nitrate (AgNO3) in polyethylene glycol (PEG) with polyvinglpyrrolidone (PVP) as capping agent. Statistical data indicate that for the "y" typed branched nanowire, the branches grow out from the side of the trunk nanowire in a preferential orientation with an angle of 55A degrees between the branch and the trunk. Transmission electron microscopy (TEM) studies indicate that the defects on silver nanowires could support the growth of branched nanowires. Conditions such as the molar ratio of PVP/AgNO3, the reaction temperature, and the... (More)
We report a facile method of preparing novel branched silver nanowire structures such as Y-shaped, K-shaped and other multi-branched nanowires. These branched nanostructures are synthesized by reducing silver nitrate (AgNO3) in polyethylene glycol (PEG) with polyvinglpyrrolidone (PVP) as capping agent. Statistical data indicate that for the "y" typed branched nanowire, the branches grow out from the side of the trunk nanowire in a preferential orientation with an angle of 55A degrees between the branch and the trunk. Transmission electron microscopy (TEM) studies indicate that the defects on silver nanowires could support the growth of branched nanowires. Conditions such as the molar ratio of PVP/AgNO3, the reaction temperature, and the degree of polymerization of reducing agent and PVP play important roles in determining the yield of the silver branches. Due to the rough surface, these branched nanostructures can be used as efficient substrates for surface-enhanced Raman scattering applications. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
branched silver nanowire, surface-enhanced Raman scattering (SERS)
in
Frontiers of Physics
volume
7
issue
5
pages
521 - 526
publisher
SP Higher Edication Press
external identifiers
  • wos:000309857900006
  • scopus:84867437343
ISSN
1673-3487
DOI
10.1007/s11467-012-0255-y
language
English
LU publication?
yes
id
412ad02b-e368-4730-ae13-41af7c347de5 (old id 3174987)
date added to LUP
2012-12-12 09:00:58
date last changed
2017-01-01 06:23:24
@article{412ad02b-e368-4730-ae13-41af7c347de5,
  abstract     = {We report a facile method of preparing novel branched silver nanowire structures such as Y-shaped, K-shaped and other multi-branched nanowires. These branched nanostructures are synthesized by reducing silver nitrate (AgNO3) in polyethylene glycol (PEG) with polyvinglpyrrolidone (PVP) as capping agent. Statistical data indicate that for the "y" typed branched nanowire, the branches grow out from the side of the trunk nanowire in a preferential orientation with an angle of 55A degrees between the branch and the trunk. Transmission electron microscopy (TEM) studies indicate that the defects on silver nanowires could support the growth of branched nanowires. Conditions such as the molar ratio of PVP/AgNO3, the reaction temperature, and the degree of polymerization of reducing agent and PVP play important roles in determining the yield of the silver branches. Due to the rough surface, these branched nanostructures can be used as efficient substrates for surface-enhanced Raman scattering applications.},
  author       = {Cong, Feng-Zi and Wei, Hong and Tian, Xiao-Rui and Xu, Hongxing},
  issn         = {1673-3487},
  keyword      = {branched silver nanowire,surface-enhanced Raman scattering (SERS)},
  language     = {eng},
  number       = {5},
  pages        = {521--526},
  publisher    = {SP Higher Edication Press},
  series       = {Frontiers of Physics},
  title        = {A facile synthesis of branched silver nanowire structures and its applications in surface-enhanced Raman scattering},
  url          = {http://dx.doi.org/10.1007/s11467-012-0255-y},
  volume       = {7},
  year         = {2012},
}