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Optics and light trapping for tandem solar cells on silicon

Lal, Niraj; White, Thomas; Catchpole, Kylie

Description

The rapid advancement of thin-film photovoltaic (PV) technology increases the real possibility of large-area Si-based tandems reaching 30% efficiency, although light in these devices must be managed carefully. We identify the optical requirements to reach high efficiencies. Strict conditions are placed on material parasitic absorption and transmission of contacts: Absorption of 20% of sub-bandgap light leads to the required top-cell efficiencies of 18% at a bandgap of 1.5 eV to break even and...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/75821
Source: IEEE Journal of Photovoltaics
DOI: 10.1109/JPHOTOV.2014.2342491

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