Demonstration of additivity in strain-balanced quantum well solar cells and efficiency enhancement at high concentration

Demonstration of additivity in strain-balanced quantum well solar cells and efficiency enhancement at high concentration

GaAs based Strain-Balanced Quantum Well Solar Cells (SB-QWSC) have been shown to enhance efficiency compared to a control, if the overall photocurrent increase is not offset by a reduction in open-circuit voltage. Here we demonstrate the performance of QWSC in light fluxes of up to 250 suns equivale...

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Hauptverfasser: Tibbits, T.N.D., Ballard, I., Barnham, K.W.J., Day, R., Lim, C., Lynch, M., Mazzer, M., Roberts, J.S., Airey, R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Costs
Current measurement
Dark current
Educational institutions
Gallium arsenide
Photoconductivity
Photovoltaic cells
Quantum well devices
Solar power generation
Sun
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Zusammenfassung:GaAs based Strain-Balanced Quantum Well Solar Cells (SB-QWSC) have been shown to enhance efficiency compared to a control, if the overall photocurrent increase is not offset by a reduction in open-circuit voltage. Here we demonstrate the performance of QWSC in light fluxes of up to 250 suns equivalent. The QWSC maintains additivity (the total current is the sum of dark current and the photocurrent) up to these light concentrations and shows a higher efficiency.
ISSN:0160-8371
DOI:10.1109/PVSC.2005.1488199