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Tandem organic solar cells demonstrate exceptional efficiency and stability through a novel charge recombination layer, suggesting improvements in solar technology.
Tandem Organic Solar Cells Spontaneous in-situ protonation of amine-rich polyelectrolytes on PEDOT:PSS drives ionic self-assembly into an aligned dipole layer, lowering the work function while chemically quenching amine reactivity. The resulting polymeric charge recombination layer facilitates tunnelling-dominated ohmic recombination with a near-zero/negative effective barrier height, enabling tandem organic solar cells with record-high efficiency and exceptional stability. More in article number e04940, Jinho Lee and co-workers.
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Kim et al. (2026) studied this question.
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