| abstract |
The present invention relates to quantum dots, methods for their manufacture, quantum dot-polymer composites and electronic devices including the same. The quantum dot has a perovskite crystal structure and includes a compound represented by Chemical Formula 1, wherein A is a Group IA metal selected from Rb, Cs, Fr, and combinations thereof, and B is selected from Si, Ge, Sn, Pb, and The Group IVA metal of its combination, X is a halogen selected from F, Cl, Br, and I, BF4- , or a combination thereof, and α is greater than 0 and less than or equal to about 3; and wherein the quantum dots have about 1 Nano ‑ about 50 nanometers in size. Chemical formula 1ABX 3+α . |