Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. Supporting Information Filename Description smll76430-sup-0001-SuppMat.docx4.1 MB Supporting file: smll76430-sup-0001-SuppMat.docx. References 1, , and , “Quantum Dot–Induced Phase Stabilization of α-CsPbI 3 Perovskite for High-Efficiency Photovoltaics,” Science 354, no.
