Composite Fe3O4@ Au core-shell nanoparticle: Tunable and enhancement of optical absorption property

Abstract

Bifunctional nanomaterial Fe3O4 @ Au core-shell is a kind of nanoparticle that includes magnetic iron oxide core with gold coated. It can be used in can achieve the controllable and tunable electromagnetic field enhancement and may open up exciting opportunities to engineer new materials used in biomedical applications. This research work aims at theoretical investigating the basic optical absorption property of Fe3O4@Au core-shell with varying number particles, inter-particle distance, and direction of incident light using the discrete dipole approximation method (DDA) in the wavelength of visible to near-infrared ranges of the electromagnetic wave spectrum. The results were observed that these parameters can be enhanced optical light absorption and tuned the LSPR peak position. The obtained results might be used for basic fabricating the more performance specific applications like a drug in life science.