研究目的
Investigating the microscopic mechanism of the improvement of solar cell efficiency by plasmons in metallic components embedded in the active optical medium of a cell, focusing on the explanation of the observed new channel of plasmon photovoltaic effect related to the influence of plasmons onto the internal cell electricity beyond the previously known plasmon mediated absorption of photons.
研究成果
The study confirms the relatively poor increase of the absorption rate due to Au/SiO2 components in perovskite cells, much lower than for Si cells with similar size and density of metallic elements deposited on the top of the cell. However, the metallized by Au/SiO2 particles perovskite cell exhibits a ca. 16% increase of the overall efficiency, mostly due to a large increase of the photo-current, attributed to the reduction of the binding energy of photo-excitons.
研究不足
The study focuses on a specific model situation of hybrid chemical perovskite solar cells with core–shell Au/Si02 nanoparticles, which may limit the generalizability of the findings to other types of solar cells or metallic nanoparticles.
