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Polycrystalline Silicon Thin-film Solar cells with Plasmonic-enhanced Light-trapping
Published on: July 2, 2012
High efficiency thin-film crystalline Si/Ge tandem solar cell
1Department of Physics, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125, USA. greg.sun@umb.edu
Optics Express
|April 15, 2010
Abstract:
We propose and simulate a photovoltaic solar cell comprised of Si and Ge pn junctions in tandem. With an anti-reflection film at the front surface, we have shown that optimal solar cells favor a thin Si layer and a thick Ge layer with a thin tunnel hetero-diode placed in between. We predict efficiency ranging from 19% to 28% for AM1.5G solar irradiance concentrated from 1 approximately 1000 Suns for a cell with a total thickness approximately 100 microm.

