Optimisation of Nano Urchin Geometry for the Generation of Hot Electrons for Sensing: A Computational Study

Plasmonic nanostructures are preferred because they raise the Q factor, which improves any device's efficiency. Depending on the geometric structural characteristics of the material, they enhance the absorption of incident light at wavelengths. In this work, we investigate the nano-urchin array's periodic structure on a thin substrate. Additionally, we will investigate the absorbance enhancement that may be utilised in the future to create a sensor for applications like biosensing, photocatalysts etc. that differs in the way that localised plasmons are generated in the cavity created by nano urchin structures.