fig11

Figure 11. (A) Device structure of tandem cells. (B) Energy level diagram of each layer in tandem cells. All panels reprinted with permission[82].Copyright 2021, Wiley-VCH.
Figure 11. (A) Device structure of tandem cells. (B) Energy level diagram of each layer in tandem cells. All panels reprinted with permission[82].Copyright 2021, Wiley-VCH.
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