Perovskite semiconductor materials are compoundsnổ hủ, and their bandgap can be adjusted between 1.2 eV and 3.2 eV through component adjustment. Adjust the bandgap of perovskite material to approximately 1.68 eV, and use stacking technology to form a stacked solar cell with crystalline silicon material with a bandgap of 1.12 eV. Perovskite acts as the top cell to absorb short wavelength high-energy photons
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