, CsPbBr3 (7 nm, 40 meV), and CsPbI3 (12 nm, 20 meV). Similarly, in closely related
, CsPbBr3 (7 nm, 40 meV), and CsPbI3 (12 nm, 20 meV). Similarly, in closely associated hybrid perovskite MAPbI3 tiny exciton binding energies of 25 meV have been recommended computationally33-35…