Surface plasmon resonance of capped Au nanoparticles



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García, M. A. and De la Venta, J and Crespo del Arco, Patricia and LLopis,, J. and Penadés, S. and Fernández, A. and Hernando Grande, Antonio (2005) Surface plasmon resonance of capped Au nanoparticles. Physical review B, 72 (24). ISSN 1098-0121

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In this Rapid Communication we show the relationship between surface plasmon resonance damping and the intensity of surface bonding for capped Au nanoparticles, (NPs). Up to now the influence of capping has been included as a phenomenological modification of the scattering constant. It is indicated here that the effective NP size is the parameter mainly affected by surface bonding. Experimental results in different Au-thiol NPs are shown to be in excellent agreement with the expression we propose for damping. Moreover, according to our model the resonance profile gives a deep insight of the interface bonding strength.

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©2005 The American Physical Society

Uncontrolled Keywords:Absorption-spectra; Gold nanoparticles; Nanocrystal; Adsorption; Molecules; Clusters; Colloids; System
Subjects:Sciences > Physics > Materials
Sciences > Physics > Solid state physics
ID Code:41825
Deposited On:27 Mar 2017 14:54
Last Modified:27 Mar 2017 14:54

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