Electromagnetic Response and Optical Properties of Anisotropic CuSbS₂ Nanoparticles

We investigate the electromagnetic response of anisotropic copper antimony disulfide (CuSbS₂) nanoparticles and layers embedded with them for solar applications and near-infrared (NIR) sensors using computational methods. To this end we calculate the scattering and absorption efficiencies of oblate spheroidal CuSbS₂ nanoparticles using the surface integral equation method. We further investigate the optical response of thin layers containing CuSbS₂ spheroids at low volume fraction using a Monte Carlo method. We find that response of these layers can be considerably modified by changing the short axis length and the orientation of the particles within the layer with respect to the incoming radiation. This allows engineering the layers for specific polarization-dependent-response applications.