Design Of Step Pyramidal Nanoparticle For Plasmonic Photovoltaics

Plasmonic Photovoltaics (PVs) are an effective method for increasing optical absorption by adding metallic nanoparticles to the photovoltaic active layer. The role of these nanoparticles is confining the incident light near them in the PV cell, resulting in thin film PVs of enhanced efficiency. Therefore, different materials and new NPs shapes are used for this purpose. In this research, a step pyramid is introduced as a novel structure for nanoparticles for enhancing plasmonic PVs by embedding an array of the proposed step pyramid nanoparticles within the PV cell. Therefore, the extinction cross-section at different dimensions of the NP is studied. Also, the field modes of the plasmonic PV are studied, showing the confinement of the field around the edges of the proposed NPs. Thus, the proposed structure is a promising candidate for enhancing Photovoltaics performance.