Solar heating of GaAs nanowire solar cells

Solar heating of GaAs nanowire solar cells

We use a coupled thermal-optical approach to model the operating temperature rise in GaAs nanowire solar cells. We find that despite more highly concentrated light absorption and lower thermal conductivity, the overall temperature rise in a nanowire structure is no higher than in a planar structure....

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Veröffentlicht in:Optics express 2015-11, Vol.23 (24), p.A1363-A1372
Hauptverfasser: Wu, Shao-Hua, Povinelli, Michelle L
Format: Artikel
Sprache:eng
Schlagworte:
nanostructures
solar energy
thermal emission
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Zusammenfassung:We use a coupled thermal-optical approach to model the operating temperature rise in GaAs nanowire solar cells. We find that despite more highly concentrated light absorption and lower thermal conductivity, the overall temperature rise in a nanowire structure is no higher than in a planar structure. Moreover, coating the nanowires with a transparent polymer can increase the radiative cooling power by 2.2 times, lowering the operating temperature by nearly 7 K.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.23.0A1363