Silver nanoparticle impregnated polycarbonate substrates for surface enhanced Raman spectroscopy
Silver nanoparticle impregnated polycarbonate substrates for surface enhanced Raman spectroscopy
The embedding of nanoscopic metal structures into polymeric matrices represents a convenient way to stabilise a controlled dispersion of protected nanoparticles whilst taking advantage of their physical characteristics. Supercritical carbon dioxide (scCO) has been used to produce silver nanoparticles in optically transparent polycarbonate (PC) matrices allowing fine scale dispersions of particles to be produced within a prefabricated polymer component. Characterization of these nanocomposites has been performed using transmission electron microscopy (TEM) and UV-vis spectroscopy. The substrates give excellent responses in surface-enhanced Raman spectroscopy (SERS) for both 4-aminothiophenol and rhodamine 6G target molecules. They offer significant benefits over more conventional SERS substrates in that they are cheap, flexible, mechanically robust and temporally stable. Post-processing the films via simple etching techniques, provides an additional degree of design control and the potential to fabricate devices with unique excitation and detection geometries for a wide range of applications.
1265-1271
Hasell, T.
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Lagonigro, L.
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Peacock, A.C.
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Yoda, S.
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Brown, P.D.
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Sazio, P.J.A.
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Howdle, S.M.
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23 April 2008
Hasell, T.
590c69ff-ee78-4cae-a77a-198c35803346
Lagonigro, L.
c3bbb5f9-e81b-4565-970b-49c0e0bfd583
Peacock, A.C.
685d924c-ef6b-401b-a0bd-acf1f8e758fc
Yoda, S.
61fff908-7257-4078-b6f7-4374322efb14
Brown, P.D.
f0b2e76e-288d-4bab-9581-1f5421854d5e
Sazio, P.J.A.
0d6200b5-9947-469a-8e97-9147da8a7158
Howdle, S.M.
9aaf52a9-58ae-4811-947a-0498f153cfa5
Hasell, T., Lagonigro, L., Peacock, A.C., Yoda, S., Brown, P.D., Sazio, P.J.A. and Howdle, S.M.
(2008)
Silver nanoparticle impregnated polycarbonate substrates for surface enhanced Raman spectroscopy.
Advanced Functional Materials, 18 (8), .
(doi:10.1002/adfm.200701429).
Abstract
The embedding of nanoscopic metal structures into polymeric matrices represents a convenient way to stabilise a controlled dispersion of protected nanoparticles whilst taking advantage of their physical characteristics. Supercritical carbon dioxide (scCO) has been used to produce silver nanoparticles in optically transparent polycarbonate (PC) matrices allowing fine scale dispersions of particles to be produced within a prefabricated polymer component. Characterization of these nanocomposites has been performed using transmission electron microscopy (TEM) and UV-vis spectroscopy. The substrates give excellent responses in surface-enhanced Raman spectroscopy (SERS) for both 4-aminothiophenol and rhodamine 6G target molecules. They offer significant benefits over more conventional SERS substrates in that they are cheap, flexible, mechanically robust and temporally stable. Post-processing the films via simple etching techniques, provides an additional degree of design control and the potential to fabricate devices with unique excitation and detection geometries for a wide range of applications.
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Published date: 23 April 2008
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 54013
URI: http://eprints.soton.ac.uk/id/eprint/54013
ISSN: 1616-301X
PURE UUID: 0d9ab3fc-e7a6-4f89-8f0a-989741b9a14a
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Date deposited: 20 Aug 2008
Last modified: 16 Mar 2024 03:31
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Contributors
Author:
T. Hasell
Author:
L. Lagonigro
Author:
A.C. Peacock
Author:
S. Yoda
Author:
P.D. Brown
Author:
S.M. Howdle
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