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5 March 2021 Optimizing multijunction photonic power converter design with measured radiative efficiency
Daisy Xia, Matthew M. Wilkins, Jacob J. Krich
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Proceedings Volume 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X; 116810W (2021) https://doi.org/10.1117/12.2577272
Event: SPIE OPTO, 2021, Online Only
Abstract
Photonic power converters (PPCs) are multijunction photovoltaic devices that convert monochromatic light to electricity. We measure the current-density-dependent external radiative efficiency of representative single-junction GaAs PPCs and use the results in a multijunction detailed balance model to predict attainable device efficiencies in multi-junction GaAs PPCs. For fixed input optical power density, we determine the number of junctions that maximizes efficiency, including effects of luminescent coupling and series resistance. The optimal number of junctions ensures that the device operates close to its maximum radiative efficiency.
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Daisy Xia, Matthew M. Wilkins, and Jacob J. Krich "Optimizing multijunction photonic power converter design with measured radiative efficiency", Proc. SPIE 11681, Physics, Simulation, and Photonic Engineering of Photovoltaic Devices X, 116810W (5 March 2021); https://doi.org/10.1117/12.2577272
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KEYWORDS
Data modeling
Gallium arsenide
Quantum efficiency
Data transmission
Electromagnetic interference
External quantum efficiency
Luminescence
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