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Thiocyanate-mediated additive engineering enables oriented crystallization and suppressed halide migration for efficient and stable perovskite/silicon tandem solar cells
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DOI：10.1016/j.nanoen.2026.112283.png)
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Abstract
En 中文
• Thiocyanate-mediated stabilization strategy advances stable wide-bandgap perovskites. • SCN⁻ lowers surface energy, driving rapid nucleation and (100) plane orientation. • SCN⁻ fills I vacancies, raising migration barrier and suppressing phase segregation. • The optimized perovskite/silicon tandem solar cell achieved an efficiency of 32.4%. • The operational lifetime of tandem cells is extended by four times to T80∼1100 h.
Keywords:
Wide bandgap perovskites
Tandem solar cells
Pseudo halogens thiocyanate
Surface energy
Stability
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