Efficient All-Inorganic CsPbBr₃ Perovskite Solar Cells by Using CdS/CdSe/CdS Quantum Dots as Intermediate Layers

Figure 1

(a) Schematic structures of CdS/CdSe/CdS QD. (b) XRD patterns of CdS seeds, CdS/CdSe, and CdS/CdSe/CdS QDs. (c–f) TEM images of CdS/CdSe/CdS QDs with varying CdSe shell thicknesses (1, 3, 5, and 6 ML) with the corresponding average diameter statistical charts for the QDs.

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