Control of plasmon resonance of gold nanoparticles via excimer laser irradiation

A significant shift of the surface plasmon resonance absorption spectrum of gold nanoparticles was obtained by the oxidation of the nanoparticle surface via pulsed excimer laser irradiation. The high UV-light absorption of gold nanoparticles chemically produced by citrate reduction led to the import...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2011-01, Vol.102 (1), p.153-160
Main Authors: Riabinina, Daria, Zhang, Jianming, Chaker, Mohamed, Margot, Joëlle, Ma, Dongling, Tijssen, Peter
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
Condensed Matter Physics
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Electronic structure of nanoscale materials : clusters, nanoparticles, nanotubes, and nanocrystals
Exact sciences and technology
Excimer lasers
Gold
Irradiation
Lasers
Machines
Manufacturing
Nanoparticles
Nanotechnology
Optical and Electronic Materials
Oxidation
Physics
Physics and Astronomy
Plasmons
Processes
Surface and interface electron states
Surface chemistry
Surfaces and Interfaces
Thin Films
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Summary:A significant shift of the surface plasmon resonance absorption spectrum of gold nanoparticles was obtained by the oxidation of the nanoparticle surface via pulsed excimer laser irradiation. The high UV-light absorption of gold nanoparticles chemically produced by citrate reduction led to the important surface oxidation up to 26%. As a result of laser irradiation, the gold/gold oxide core-shell nanoparticles with little variation of the nanoparticle size were produced. After only 5 min of laser irradiation, a 12-nm blue shift in surface plasmon resonance was obtained. The possible mechanisms governing the modification in surface plasmon resonance by laser irradiation of gold nanoparticles were discussed.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-010-6058-5