Maxwell achieves 32.5% efficiency for HJT-perovskite tandem cell

It was reported that solar equipment manufacturer Maxwell has reached a certified conversion efficiency of 32.5% of its perovskite-silicon heterojunction (HJT) tandem cell, as was reportedly verified by Fraunhofer ISE. This is an improvement over its previous record of 32.38%.

According to the company, the cell was produced on 110 µm industrial-grade silicon wafers using its mass-production equipment and processes. Maxwell attributed the gain to optimized perovskite passivation and development of low-damage TCO materials.

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Posted: Mar 03,2026 by Roni Peleg