The following uses for europium are gathered from a number of sources as well as from anecdotal comments. I'd be delighted to receive corrections as well as additional referenced uses (please use the feedback mechanism to add uses).
- europium isotopes are good neutron absorbers and are used in nuclear control applications
- the oxide is used as a phosphor activator and europium-activated yttrium vanadate is used as the red phosphor in colour TV tubes
- europium-doped plastic is a laser material