cadmium selenide

Cadmium selenide (CdSe) is a chemical compound formed from the elements cadmium and selenium. It is typically produced by precipitating it from solutions of cadmium salts using hydrogen selenide or alkaline selenides.1

By adjusting the precipitation conditions, stable colors ranging from yellow to bright red can be achieved. Cadmium selenide, often mixed with cadmium sulfide, is widely used as a high-grade pigment in paints and artist's materials due to its color stability and resistance to sulfur and oxidation.1

In scientific research, cadmium selenide quantum dots have been synthesized using a method that involves injecting materials to form CdSe crystals into a hot solvent. This process allows for the creation of dots of specific sizes, which is crucial for their unique quantum properties that depend on their size. These quantum dots have applications in areas such as QLED screens, solar cells, and biomedical imaging.2