Caesium cadmium bromide (Cs Cd Br3) is a synthetic crystalline material.

Unlike most other bromides, CsCdBr3 is non-hygroscopic,[2] giving it applications as an efficient upconversion material in solar cells.

[3] As a single crystal structure doped with rare-earth ions, it can be also used as active laser medium.

It is highly transparent in the visible and infrared regions and can be used as a nonlinear optical crystal.

[4] Caesium cadmium bromide with the formula Cs2CdBr4 has also been synthesized.