Formation and plasmonic response of self-assembled layers of colloidal gold nanorods and branched gold nanoparticles
Formation and plasmonic response of self-assembled layers of colloidal gold nanorods and branched gold nanoparticles
The plasmonic properties of self-assembled layers of rod- and branched-shaped gold nanoparticles were investigated using optical techniques. Nanoparticles were synthesized by a surfactant-guided, seed-mediated growth method. The layers were obtained by gradual assembly of nanoparticles at the interface between a polar and a nonpolar solvent and were transferred to a glass slide. Polarization and angle-dependent extinction measurements showed that the layers made of gold nanorods were governed by an effective medium response. The response of the layers made by branched gold particles was characterized by random light scattering. Microscopic mapping of the spatial mode structure demonstrates a uniform optical response of the nanoparticle layers down to a submicrometer length scale.
8874-8880
Schulz, K. Marvin
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Abb, Sabine
2d7e5d0f-4817-4940-ac5a-ac4dd1a4ad89
Fernandes, Rute
848317d8-1eb0-48ad-aefc-012ab19d9f52
Abb, Martina
d1aa3add-7761-4c4f-8a3d-7da3084deb33
Kanaras, Antonios G.
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Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
8 March 2012
Schulz, K. Marvin
5e5b2e44-bc22-4628-a400-388e3cabc44d
Abb, Sabine
2d7e5d0f-4817-4940-ac5a-ac4dd1a4ad89
Fernandes, Rute
848317d8-1eb0-48ad-aefc-012ab19d9f52
Abb, Martina
d1aa3add-7761-4c4f-8a3d-7da3084deb33
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Schulz, K. Marvin, Abb, Sabine, Fernandes, Rute, Abb, Martina, Kanaras, Antonios G. and Muskens, Otto L.
(2012)
Formation and plasmonic response of self-assembled layers of colloidal gold nanorods and branched gold nanoparticles.
Langmuir, 28 (24), .
(doi:10.1021/la300199j).
Abstract
The plasmonic properties of self-assembled layers of rod- and branched-shaped gold nanoparticles were investigated using optical techniques. Nanoparticles were synthesized by a surfactant-guided, seed-mediated growth method. The layers were obtained by gradual assembly of nanoparticles at the interface between a polar and a nonpolar solvent and were transferred to a glass slide. Polarization and angle-dependent extinction measurements showed that the layers made of gold nanorods were governed by an effective medium response. The response of the layers made by branched gold particles was characterized by random light scattering. Microscopic mapping of the spatial mode structure demonstrates a uniform optical response of the nanoparticle layers down to a submicrometer length scale.
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Published date: 8 March 2012
Organisations:
Quantum, Light & Matter Group
Identifiers
Local EPrints ID: 338129
URI: http://eprints.soton.ac.uk/id/eprint/338129
ISSN: 0743-7463
PURE UUID: 1cfd41d4-bfef-4b01-b9c5-9d146b39a8ed
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Date deposited: 10 May 2012 09:29
Last modified: 15 Mar 2024 03:34
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Contributors
Author:
K. Marvin Schulz
Author:
Sabine Abb
Author:
Rute Fernandes
Author:
Martina Abb
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