Fraunhofer ISE achieves 30.6% efficiency for perovskite-silicon tandem based on industry-standard bottom TOPCon cell

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https://www.pv-magazine.com/2025/12/04/fraunhofer-ise-achieves-30-6-efficiency-for-perovskite-silicon-tandem-based-on-industry-standard-bottom-topcon-cell/