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  • Title: High efficiency thin-film crystalline Si/Ge tandem solar cell.
    Author: Sun G, Chang F, Soref RA.
    Journal: Opt Express; 2010 Feb 15; 18(4):3746-53. PubMed ID: 20389384.
    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.
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