Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: S1.00082 : Synthesis of stable Au-PEG nanocomposite chains in a single step precursor free method and its formation mechanism and Di-electric behavior
Author:
We report a simple and effective one step and one-pot synthesis
of stable
assembly of Au nanoparticles (diameter 8-10nm) into chains in an
Ethylene
Glycol medium(MEG), using only a solid metallic Au target and a
pulsed
excimer laser. No use any external precursor, reducing agent or
surfactant
so it is a chemistry free synthesis route. The Au-PEG
nanocomposite chains
(with unbroken lengths often more than few microns) formed in
liquid medium
are mechanically and thermally stable and can be transferred
unchanged into
a solid substrate which can span a large surface area. The
nanochains show a
broad optical absorption near to visible spectrum. Hybrid of Au
nanochains
and separated nanoparticles can also be formed using a proper
choice of the
laser fluence and MEG/DI water concentration. The Au-PEG
nanocomposite
chains in the medium shows enhanced low frequency dielectric
constant {\&}
electrical conductivity. NMR shows that due to the formation of
dimer/trimers of MEG molecules that formed by the ablation
process, attach
to the Au nanoparticles and facilitate the nanocomposite chain
formation.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.S1.82
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2021 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
1 Research Road, Ridge, NY 11961-2701
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700