Journal
2021 IEEE 48TH PHOTOVOLTAIC SPECIALISTS CONFERENCE (PVSC)
Volume -, Issue -, Pages 590-595Publisher
IEEE
DOI: 10.1109/PVSC43889.2021.9518502
Keywords
silicon; solar cell; efficiency; space-charge region recombination
Funding
- National Research Foundation of Ukraine [2020.02/0036]
- Natural Sciences and Engineering Research Council of Canada (NSERC)
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Theoretical calculations for short-circuit current, open-circuit voltage, and photoconversion efficiency of silicon back contact solar cells (BCSC) with planar surfaces have been conducted, taking into account nonradiative trap-assisted exciton Auger recombination and recombination in the space-charge region in addition to the usual recombination channels. It is found that these two recombination mechanisms are crucial in the BCSCs in the maximum power operation regime, with model results showing good agreement with experimental results from the literature.
Short-circuit current, open-circuit voltage, and photoconversion efficiency of silicon back contact solar cells (BCSC) with planar surfaces are calculated theoretically. In addition to the recombination channels usually considered in this kind of modeling, namely, radiative, Auger, Shockley-Read-Hall, and surface recombination, the model also takes into account the nonradiative trap-assisted exciton Auger recombination and recombination in the space-charge region. It is established that these two recombination mechanisms are essential in the BCSCs in the maximum power operation regime. The model results are in good agreement with the experimental results from the literature.
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