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Tandem Perovskite-Silicon PV Cell from Mexico

Emerging tandem photovoltaic cell stacking perovskite top cell on silicon bottom cell for >30% efficiency potential. Individual research-grade cell under HTS 8541.42.00. Not assembled into commercial modules.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Stability data (IEC 61215) essential for perovskite degradation claims

Declare organic/inorganic hybrid composition for proper chemical classification

Research exemption paperwork for prototype quantities