Europium Eu

Europium, named after the continent of Europe, is mainly used for its phosphorescence. For example, europium oxide, a red phosphor, has been used in the screens of colored TV and fluorescent lamps. Europium is also used to create phosphor marks on Euro banknotes for preventing counterfeiting. Nowadays, europium is doped to different host materials to produce nanophosphors, which are useful probes for scientific research.