| abstract |
Described herein are materials comprising (1) a monomer or a polymer; (2) perovskite quantum dots interspersed in the monomer or the polymer, each of the perovskite quantum dots independently having the formula:Csa(MA)b(FA)cRbdPbpSnrBisClxBryIz,wherein:MA is CH3NH3;FA is HC(NH2)2;a, b, c, and d are each independently a number from 0 to 1, provided that the sum of a, b, c, and d is 1;p, r, and s are each independently a number from 0 to 1, provided that the sum of p, r, and s is 1; andx, y, and z are each independently a number from 0 to 3, provided that the sum of x, y, and z is 3; and(3) an additive interspersed in the monomer or the polymer, the additive comprising: a halide-based additive; a light scattering agent having the formula: M2O3, wherein M is, at each occurrence, independently, a metal, provided that at most one instance of M is a group 13 element; or both. Also described are devices comprising such materials, as well as methods of forming such materials. |