Look for these books in the library:

https://www.elsevier.com/books/luminescence-and-the-solid-state/ropp/978-0-444-51661-9

http://link.springer.com/book/10.1007%2F978-3-642-79017-1

If you choose luminescence as a religion, those are you Bibles.

You would have to have full knowledge of how the activator and crystal lattice communicate conformationally or electromagnetically. Only then can you tell its suitability. You would require good literary information or experiments to determine that. 

very thanks.