The present invention provides thioaluminate phosphor compounds BaAl2S4 and BaAl4S7 with novel crystal structures that have higher luminosity and improved color coordinates. The invention is also directed to rare earth element activated barium thioaluminate phosphor films comprising a phosphor compound...http://www.google.fr/patents/US7427367?utm_source=gb-gplus-shareBrevet US7427367 - Barium thioaluminate phosphor materials with novel crystal structures
Barium thioaluminate phosphor materials with novel crystal structures
