| 摘要 |
<p>An adherent, transparent moisture barrier is applied to alkaline earth sulfide phosphor particles by stirring in an anhydrous polar solvent including a fluorinating compound present in a concentration of no higher than 0.02 molar until a transparent fluorine-containing moisture-impervious coating has been applied to the particles. The polar solvent is removed and the coated particles dried. A second moisture barrier can also be applied to ensure long term resistance of the phosphors to degradation by moisture.</p> |
