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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
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.
0743-7463
Schulz, K. Marvin
5e5b2e44-bc22-4628-a400-388e3cabc44d
Abb, Sabine
2d7e5d0f-4817-4940-ac5a-ac4dd1a4ad89
Fernandes, Rute
848317d8-1eb0-48ad-aefc-012ab19d9f52
Abb, Martina
96f778af-f51a-464e-8e73-dfa24b4132de
Kanaras, Antonios G.
667ecfdc-7647-4bd8-be03-a47bf32504c7
Muskens, Otto L.
2284101a-f9ef-4d79-8951-a6cda5bfc7f9
Schulz, K. Marvin
5e5b2e44-bc22-4628-a400-388e3cabc44d
Abb, Sabine
2d7e5d0f-4817-4940-ac5a-ac4dd1a4ad89
Fernandes, Rute
848317d8-1eb0-48ad-aefc-012ab19d9f52
Abb, Martina
96f778af-f51a-464e-8e73-dfa24b4132de
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. (doi:10.1021/la300199j).

Record type: Article

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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More information

Published date: 8 March 2012
Organisations: Quantum, Light & Matter Group

Identifiers

Local EPrints ID: 338129
URI: https://eprints.soton.ac.uk/id/eprint/338129
ISSN: 0743-7463
PURE UUID: 1cfd41d4-bfef-4b01-b9c5-9d146b39a8ed
ORCID for Martina Abb: ORCID iD orcid.org/0000-0003-3996-3931
ORCID for Antonios G. Kanaras: ORCID iD orcid.org/0000-0002-9847-6706
ORCID for Otto L. Muskens: ORCID iD orcid.org/0000-0003-0693-5504

Catalogue record

Date deposited: 10 May 2012 09:29
Last modified: 06 Jun 2018 12:37

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