 Strontium aluminate SrAlO3 |
| When activated with a suitable dopant (eg. europium, then it is labeled SrAlO3:Eu), it acts as a photoluminescent phosphor with long persistence of phosphorescence. The glow intensity depends on the particle
size; generally, the bigger the particles, the better the glow.
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| Strontium aluminate is vastly superior phosphor than its predecessor, copper-activated zinc sulfide; it is about 10 times
brighter, 10 times longer glowing, and 10 times more expensive than ZnS:Cu. It is frequently used in glow in the dark toys,
where it displaces the cheaper but less efficient ZnS:Cu.
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