(color online) Highly efficient QDSCs based on alloyed CQDs. (a) Schematic energy level diagram and corresponding device performances of CdSe, CdS, and CdSeTe CQDs.^[44] (b) Schematic of CuInTe_2−xSe_x CQD and EQE curve of the corresponding CuInTe_2−xSe_x based QDSCs.^[45] (c) J–V curves of CuInS₂-Zn and CuInS₂-based champion cells.^[46] (d) The champion device based on Zn–Cu–In–Se alloyed CQDs with a certified PCE of 11.61%.^[47]