镓合金(GaX,X = Ag,Al,Hg和In)纳米球和纳米壳的等离子体应用的理论研究,Journal of Quantitative Spectroscopy and Radiative Transfer

Gallium (Ga) being easily morphed due to its soft matter texture and having high electronegativity is widely researched metal in the world of plasmonics. Liquid metal (LM) alloys in the form of spheres (dense) and hollow shell nanostructures has the potential to provide more functionality and enhanced sensitivity to their optical properties. The optical properties can further be increased by using Ag coatings on these liquid nanostructures with an increased stability towards oxidation and shape formation. We here theoretically study Ga alloys (GaAg, GaAl, GaHg and GaIn) observing their plasmonic properties and absorption efficiencies to search alternatives to widely used Gallium-indium alloy. Mie theory is used which provides the exact calculations of plasmon induced optical properties of nanoparticles (NPs). The optimized size of these complex nanostructures is discussed along with their potential applications. The broad band absorption is shown between 100 to 400 nm, and the peak values are tuned by size and shell thickness factor. The maximum absorption efficiency of 4.57 is observed for GaAg LM alloy.

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