On the crystal structure of colloidally prepared CsPbBr3 quantum dots

Abstract

Colloidally synthesized quantum dots of CsPbBr₃ are highly promising for light-emitting applications. Previous reports based on benchtop diffraction conflict as to the crystal structure of CsPbBr₃ quantum dots. We present X-ray diffraction and PDF analysis of X-ray total scattering data that indicate that the crystal structure is unequivocally orthorhombic (Pnma).