Successful
commercialization of Perovskite/Si tandem solar cells
(P/Si TSCs) needs a priori estimation of technological benchmarks
to outperform c-Si based technologies under field conditions. To this
end, through detailed numerical simulations and analytical modeling,
we unravel a unique scaling law for the evolution of the efficiency
and temperature coefficient of P/Si TSCs. Accordingly, we estimate
annual energy yields of P/Si tandem solar cells, which account for
the daily and seasonal variations in solar spectrum and ambient conditions.
Through this, we identify the limits of ion migration and lifetime
degradation until which P/Si TSCs remain competitive. These results
could be of broad relevance for material/interface engineering approaches
and physics-based accelerated tests to ensure long-term stability
and module reliability.
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