A two junction, four terminal photovoltaic device for enhanced light to electric power conversion using a low-cost dichroic mirror

A two junction, four terminal photovoltaic device for enhanced light to electric power conversion using a low-cost dichroic mirror

A low-cost dichroic mirror can be used successfully for solar spectrum splitting to enhance solar to electrical energy conversion. The mirror is optimized for use with a polycrystalline silicon photovoltaic cell (pc-Si). With the dichroic mirror simultaneous excitation of a medium-efficient (11.1%)...

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Veröffentlicht in:Journal of renewable and sustainable energy 2009-01, Vol.1 (1), p.013106-013106-6
Hauptverfasser: Rühle, Sven, Segal, Akiba, Vilan, Ayelet, Kurtz, Sarah R., Grinis, Larissa, Zaban, Arie, Lubomirsky, Igor, Cahen, David
Format: Artikel
Sprache:eng
Schlagworte:
energy conversion
MATERIALS SCIENCE
PV
SOLAR ENERGY
solar photovoltaics
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Zusammenfassung:A low-cost dichroic mirror can be used successfully for solar spectrum splitting to enhance solar to electrical energy conversion. The mirror is optimized for use with a polycrystalline silicon photovoltaic cell (pc-Si). With the dichroic mirror simultaneous excitation of a medium-efficient (11.1%) commercial pc-Si and a custom-made high band gap GaInP cell (12.3%), yields 16.8% efficiency, with both cells operating at maximum power. Our results clearly show that what is missing for this simple low-cost enhancement of Si solar cell efficiency are low-cost high band gap cells.
ISSN:1941-7012
1941-7012
DOI:10.1063/1.3081510