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3.1.3 Advanced Perovskite/Silicon Tandem Design Using Low-Cost Approaches

• Develop new concepts and advanced designs to simplify the tandem structure and fabrication processes, building on high efficiency interconnect-free concepts.

• Simplify the tandem device structure, including the top transparent contact stack

• Develop abundant material alternatives for use as contact and electrode • Optimize the fabrication process to enable high-efficiency and stable tandems to be manufactured at low cost.

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