Plasmon-induced enhancement of optical absorption in silicon thin films due to embedded silver nano-pillars
Université de Lyon; Institut des Nanotechnologies de Lyon INL-UMR5270, CNRS, INSA Lyon Villeurbanne, F-69621, France
Received: 17 July 2014
Accepted: 15 November 2014
In the literature, plasmonic nanostructure localization outside the silicon-based solar cells is mainly considered. In our paper, an array of rear-side–located silver nano-cylinders incorporated into a Si thin film is shown to ensure a significant enhancement of the absorbed power density in the near-infrared spectral range. Several different geometrical configurations ensuring high extinction enhancement factors are numerically investigated and compared in view of their application in silicon-based solar cells.
PACS: 88.40.jj – Silicon solar cells / 88.40.fc – Modeling and analysis
© EPLA, 2014