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Synergistic Dual-Anchor Passivation at Buried Interfaces Enabling High-Efficiency and Stable Perovskite Solar Cells

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This strategy demonstrates improved efficiency and stability in perovskite solar cells, suggesting new pathways for device optimization.

The champion solar cell device achieved a power conversion efficiency of 24.12% with negligible hysteresis.
Unencapsulated devices maintained over 90% of their initial efficiency after 2000 hours under 25% relative humidity.
The use of guanidinium phosphate effectively addresses defect-induced losses at the SnO2/perovskite interface.
This work proposes a new paradigm for designing multifunctional molecular passivators to enhance perovskite optoelectronics.

Su et al. (2025) studied this question.

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