Caesium cadmium bromide ( Cs Cd Br₃) is a synthetic crystalline material. It belongs to the AMX₃ group (where A = alkali metal, M = bivalent metal, X = halogen ion). Unlike most other

bromides A bromide ion is the negatively charged form (Br−) of the element bromine, a member of the halogens group on the periodic table. Most bromides are colorless. Bromides have many practical roles, being found in anticonvulsants, flame-retardan ...

, CsCdBr₃ is non-

hygroscopic Hygroscopy is the phenomenon of attracting and holding water molecules via either absorption or adsorption from the surrounding environment, which is usually at normal or room temperature. If water molecules become suspended among the substance' ...

, giving it applications as an efficient upconversion material in solar cells. As a

single crystal In materials science, a single crystal (or single-crystal solid or monocrystalline solid) is a material in which the crystal lattice of the entire sample is continuous and unbroken to the edges of the sample, with no grain boundaries.RIWD. "Re ...

structure doped with

rare-earth The rare-earth elements (REE), also called the rare-earth metals or (in context) rare-earth oxides or sometimes the lanthanides (yttrium and scandium are usually included as rare earths), are a set of 17 nearly-indistinguishable lustrous silve ...

ions, it can be also used as

active laser medium The active laser medium (also called gain medium or lasing medium) is the source of optical gain within a laser. The gain results from the stimulated emission of photons through electronic or molecular transitions to a lower energy state from a h ...

. It is highly transparent in the visible and

infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of Light, visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from ...

regions and can be used as a nonlinear optical crystal. Caesium cadmium bromide with the formula Cs₂CdBr₄ has also been synthesized.

References

Metal halides Caesium compounds Cadmium compounds Bromides Crystals Laser gain media {{crystal-stub