Surface plasmon resonance of Au-Cu bimetallic nanoparticles predicted by a quasi-chemical model

Su, Yen-Hsun; Wang, Wen-Lin
December 2013
Nanoscale Research Letters;Dec2013, Vol. 8 Issue 1, p1
Academic Journal
Au-Cu alloys are functional materials with nonlinear optical applications. However, the optical properties of such alloys are difficult to predict due to the random mixing of materials. In this paper, we present a quasi-chemical model to simulate the optical properties of Au-Cu alloy systems based on the mixing of Gibbs free energy. This model is also able to predict the position of the surface plasmon resonance peaks for Au-Cu alloy nanoparticles. The model can be applied to predict the optical properties of alloy systems in the fields of plasmonics and nanophotonics.


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